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BMW Performance Clutch Kits & Parts

These heavy-duty clutch kits use aluminum lightweight flywheels with sport clutch components to give your clutch the grip and clamping force it needs to cope with high torque upgrades. Our kits were developed through racing programs by companies affiliated with our own race team - JB Racing, Sachs Sport, OS Giken, and UUC Motorwerks. JB Racing is the leader in aluminum lightweight flywheel upgrades. They are direct replacements for the stock dual-mass flywheels with steel contact surfaces and computer balanced to 14,000 RPM. JB has partnered with Sachs to spec sport/HD clutch discs and pressure plates that work seamlessly with their aluminum flywheels. The result is a clutch/flywheel upgrade package that functions a lot like the original clutch combo with near-stock levels of effort and engangement but with a much higher torque capacity. Don't let the clutch be your weak link in a highly tuned car!

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Turner Motorsport - Corporate Logo
T#:3572021
Part#: 008333LA01
Ships on Sep 1, 2026
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Give your factory clutch a heavier motorsport feel or make your extremely tough clutch more drivable! If you have an E36 there is absolutely no reason you don't have this clutch pedal! Your factory E36 clutch pedal is made of flimsy plastic with no adjustment at all, leaving you to the mercy of the clutch you have.

Our Turner Performance Adjustable Clutch Pedal is a rigid design that gives you the ability to fully adjust your clutch feel and performance. With both upper and lower adjustments this is the best pedal on the market to fine tune your clutch pedal just the way you like it. The upper eccentric provides an adjustable pedal ratio to fine tune clutch pedal effort(how heavy the pedal feels). The lower adjustment is to change the position of the clutch assist spring, this allows you to choose where the clutch assisting spring engages. Changing where the spring engages will move the area of tension on your clutch from lower, middle to higher for maximum adjustment.

Your race car no longer needs to have a clutch that makes the car undriveable on the street. Your track car can now be your daily driver or weekend cruiser.

Features:

Adjustable throw
Capable of quicker shifts
Three lower mounting points for the spring to adjust where the assistance engages
Eccentric mount for master cylinder to adjust leverage ratio and pedal feel(weight/force needed to engage the clutch)
Self lubricating bronze bushings
All necessary hardware required for installation
Pedal body and pedal are constructed from 6061-T6 aluminum and type II black anodized for a great finish
NOTE: This Clutch Pedal does not include the Compression spring and the original spring must be reused. If you'd like to purchase a new spring, please see:

35311162505 - Non-M E36 - T#64615
21522227764 - E36 M3 - T#21753

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Turner Motorsport - Corporate Logo
T#:49578590
Part#: 056958LA01
Ships in 1-2 days
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If you've ever bled the clutch hydraulic system on your BMW, you know how frustrating it can be. Designed with both DIY enthusiasts and professional technicians in mind, our clever tool simplifies one of the most notoriously annoying steps in clutch service.

Crafted from high-quality aluminum and finished in a durable black anodized coating, our clutch slave cylinder bleeder tool is built to last. Its function is simple: the adjustable piston rod applies controlled pressure directly to the clutch slave cylinder’s piston, compressing it and reducing its internal volume. By minimizing the amount of air trapped inside the cylinder, bleeding becomes faster, cleaner, and far more effective—no more endless pedal pumping or inconsistent clutch feel. The result is firm, consistent clutch pedal engagement and a smoother overall driving experience, all achieved with less time and effort underneath the car.

FEATURES & BENEFITS

Simplifies bleeding the BMW clutch hydraulic system by reducing trapped air in the slave cylinder Eliminates excessive pedal pumping and inconsistent clutch feel Helps achieve firm, consistent clutch pedal engagement Crafted from high-quality aluminum for strength and longevity Durable black anodized finish resists wear and corrosion Designed for both DIY enthusiasts and professional technicians PRODUCT DEVELOPMENT

Our Clutch Slave Cylinder Bleeder Tool was designed, engineered, tested, and quality inspected by our Research and Development team at Turner. Nothing but the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

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Turner Motorsport - Corporate Logo
T#:5608748
Part#: 008637LA01
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Attention is always given to your shift linkage feel, whether it's replacing bushings, installing a short shift kit, or changing the height or weight of your shift knob. However, most enthusiasts don't think about the feel of their clutch pedal. Turner intends to change that with the introduction of the new Stainless Steel Clutch Lines, to provide a more direct and consistent pedal feel.

Under heavy and aggressive use, your stock rubber clutch line expands, resulting in a spongy pedal feel. This expansion is even more prominent in aged and weathered rubber lines. Turner Motorsport stainless reinforced clutch lines provide more confident and dependable shifting by maintaining consistent line pressure, long lasting corrosion resistance, and increased protection from failure. Our lines are reinforced with braided stainless steel mesh, affording superior expansion resistance over Factory and OE style clutch lines. This resistance to expansion creates a firmer pedal, and a more direct clutch pedal feel. The signature blue polymer coating provides additional protection from the elements and abrasion.

The best part about Turner clutch lines? They are manufactured in-house to the highest possible standard. All lines are made on dedicated, specialized equipment and each is tested to 3000 psi before being shipped.

Turner Motorsport stocks a large inventory of premium drivetrain components, including high-performance clutches, lightweight flywheels, short shift kits, upgraded bushings, and a wide range of shift knobs and pedal covers to suit your interior and your driving style. Everything you need to perform a professional quality transmission service, you can find here at Turner.
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Turner Motorsport - Corporate Logo
T#:39531759
Part#: 038836LA
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The factory BMW S55 dual-mass flywheel is engineered with comfort in mind, catering to the luxury-oriented expectations of the brand’s driving experience. Its design focuses on dampening drivetrain vibrations, smoothing out gear transitions, and minimizing harshness during operation. However, this refinement costs valuable performance. The dual-mass flywheel adds a substantial 26.5 lbs of rotational mass to the drivetrain, which significantly hinders throttle response and makes rev-matching feel sluggish and disconnected. Moreover, dual-mass flywheels are notorious for being a weak link in modified or high-performance builds and can prove costly to replace when they inevitably fail.

Our Single-Mass Lightweight Flywheel Conversion addresses all of these shortcomings with a purpose-built, lightweight, single-mass design that prioritizes performance. Weighing in at only 18.5 lbs., this design significantly reduces rotational mass, allowing your S55 to achieve its true motorsport potential!

Features & Benefits:

Precision machined from 4140 HT heat-treated chromoly steel for exceptional toughness, even wear properties, and increased durability.
Material quality promotes even wear across the entire friction surface, prolonging component lifespan.
Heat treated to HRC 28-32, tempered to relieve stress and improve dimensional stability.
Hardness improves component wear characteristics.
Black oxide coated for corrosion resistance on non-friction surfaces.
Precision balanced to exceed OEM specification (G16 spec to 175g-mm).
SFI 1.1 certified to ensure safe operation under extreme operating conditions.
Specifically designed to work with S55 OE-architecture clutches.
Optimized step height maximizes clutch clamp load and offers a prolonged service life.
Performance:

10 lbs. lighter than the factory BMW flywheel!
OEM Dual-Mass: 26.5 lbs.
Turner Motorsport Single-Mass: 18.5 lbs.
Faster revs
Improved throttle response and acceleration
Allows for a more engaging driving experience and delivers a feeling of direct connection
Installation:

Flywheel Hardware: For added peace of mind, apply Blue or Orange Loctite when installing factory flywheel bolts that do not come with pre-applied threadlocker.

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Turner Motorsport - Corporate Logo
T#:553672
Part#: 000265TMS06
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Engineered in-house, we designed this lightweight, single-mass flywheel to provide more than 10 pounds of weight savings over the factory flywheel. While some ultra-lightweight performance flywheels are manufactured from aluminum, our designers opted for a more driveable experience with steel. The mass provided by steel helps dampen vibrations and noise, delivering near-factory refinement with most of the benefits of a lightweight flywheel: quicker throttle response, improved durability (and longevity), and more effective transfer of power to the wheels.

Modern flywheels are built with additional components that are designed to dampen and minimize vibrations from the engine and transmission. Weight has increased and reliability has decreased. With additional weight more energy is required for it to move. A lightweight flywheel does away with the dual mass design and its additional mass so more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance. And with a single-mass flywheel the unreliable DMF design is eliminated.

When it comes to selecting a clutch to pair with a lightweight flywheel, consider the driving you’ll be doing. As a single mass flywheel eliminates the dual-mass dampening of the factory flywheel, to retain the lowest noise, lowest harshness driving experience possible, select a clutch with a dampened disc such as the ACT Heavy Duty. For dedicated track cars, a solid clutch hub is appropriate.

Our recommendations:

Street: ACT Heavy Duty
Track: ACT Xtreme for high torque cars or OE 335is LuK (with 440lbs-ft or less)
Features:

Precision machined from 4140 HT heat treated chromoly steel for exceptional toughness, even wear properties, and durability.
Material quality promotes even wear across the entire friction surface
Heat treated to HRC 28-32, tempered to relieve stress and improve dimensional stability and elevated temperatures
Hardness improves wear characteristics
Black oxide coated for corrosion resistance on non-friction surfaces.
8620 steel pilot bearing pin, case hardened and Precision ground for maximum wear resistance.
Precision balanced to exceed OEM specification (G16 spec to 175g-mm).
SFI 1.1 tested and certified to ensure safe operation under extreme operating conditions
SFI 1.1 specifies minimum material properties and requires a 3rd party lab certification test, spinning the flywheel to 1.5x redline for 1 hour to ensure the flywheel will not burst.
Specifically designed to work with N54 architecture clutches
Step height designed to optimize clamp load and maximize the usable range of clutch wear for a long service life
Performance:

Turner Flywheel 18.6 lbs
10 lbs lighter than the factory BMW flywheel (Stock Flywheel 28.9 lbs)
Faster revs
Improved throttle response
Improved acceleration
Sportier driving experience
Stock flywheel weight - 28.9lbs
Turner single mass flywheel weight = 18.55lbs

Single Mass Flywheel Conversion:

Audible chatter from the transmission after installation is considered normal. As with most single mass flywheels, there is less dampening in the flywheel to reduce "gear noise." This chatter noise may be more present when the transmission fluid temperatures are hotter and may be intensified by other modifications. Most gearboxes will experience some chatter noise at hotter temperatures. Please be advised that this noise will disappear once the clutch pedal is depressed. This symptom may be lessened by adjusting transmission fluid weight, turning off electrical/driveline consumers (A/C, High Beams, ETC.), and by raising the RPM slightly.

Installation:

Flywheel Hardware: For added peace of mind, apply Blue or Orange Loctite when installing factory flywheel bolts that do not come with pre-applied threadlocker.

This item fits the following BMWs with 8 bolt flywheel and build date up to 01/2009 or earlier:
2008-01/2009 E82 BMW 135i 135is 1M
2007-01/2009 E90 BMW 335i 335xi 335i xDrive - Sedan
2007-01/2009 E92 BMW 335i 335xi 335i xDrive - Coupe
2007-01/2009 E93 BMW 335i - Convertible
2008-01/2009 E60 BMW 535i 535xi 535i xDrive

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Turner Motorsport - Corporate Logo
T#:584308
Part#: 026647TMS01
Ships on Sep 21, 2026
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Upgrade your vehicle's performance with the Tuner Motorsport Performance Lightweight Flywheel. This precision-engineered flywheel is designed to enhance engine response and acceleration by reducing rotational mass. Crafted from high-quality materials, this flywheel ensures durability while delivering improved throttle response and quicker revving. The lightweight design not only enhances performance but also aids in smoother gear transitions. Experience enhanced driving dynamics and improved engine performance with Tuner Motorsport's Lightweight Flywheel.
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Turner Motorsport - Corporate Logo
T#:29898455
Part#: 048935LA01KT1
Ships on Sep 21, 2026
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BMW E30 M20 Clutch And Flywheel Kit - I/IS from Turner Motorsport offers a premium upgrade for naturally aspirated M20 engines. This comprehensive kit includes a lightweight single-mass flywheel and a Sachs clutch kit, providing a significant performance boost and refreshing the driving experience of early and late-model E30s.

  • Lightweight Single-Mass Flywheel: Enhances throttle response and frees up lost horsepower by reducing rotating mass. Provides a perfect balance between lightweight performance and durability.
  • Sachs OE Replacement Clutch Kit: Includes clutch disc, pressure plate, throw-out bearing, and pilot bearing, designed for reliable performance and smooth operation.
  • Improved Driving Experience: Refreshes the clutch pedal feel and driving dynamics of the M20 engine, ideal for both early and late model E30s.
  • Quality and Fitment: Tested and approved by Turner Motorsport for optimal performance and confirmed fitment on various E30 models.
  • Additional Components: Recommended transmission seals, fluid, and mounting hardware available separately for a complete service.
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Turner Motorsport Performance Lightweight Flywheel - N55
For production vehicles with a 6 bolt flywheel and build date from 01/2009
Turner Motorsport - Corporate Logo
T#:596818
Part#: 026647TMS09
Ships on Sep 21, 2026
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Improve throttle response, acceleration and clutch feel - More than 10 lbs of weight savings over OE!

Turner Motorsport - Corporate Logo
T#:187021
Part#: TMS187021
Ships in 10 Business Days
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This kit uses the stock E36 M3 clutch with a JB Racing aluminum flywheel for an outstanding improvement in the non-M E36 328i/is. The stock M3 clutch is larger than the E36 328i disc and was used in the 321hp Euro M3 � way more clutch than you need on a 2.8-liter M52 (even supercharged cars). But because it�s a factory clutch the feel, durability, engagement, fitment, etc are OE spec! This package is in one of our own E36 328�s and has performed perfectly in over 60,000 miles of use.

  • OEM replacement clutch parts
  • lightweight aluminum flywheel for faster acceleration and quicker revs (15lbs less than stock)
  • comparable cost to OEM replacement parts
  • direct fit with no installation issues

    If you own an E36 but have never done a clutch job, you�re in for an unpleasant surprise! The stock flywheels don�t usually last much longer than 100,000 miles. You might be able to have it machined but only if you�re lucky. The best route is to have a new flywheel on hand when installing the clutch. This package is actually about the same price as buying a new OEM clutch and new OEM flywheel! And there�s a big performance boost!
      Included with this Clutch / Flywheel package:
    • E36 M3 3.2 Sachs OEM clutch kit - clutch disc, pressure plate, throw-out bearing
    • E36 M3 JB Racing aluminum flywheel
    • new pilot bearing
    • UUC Clutch Stop
    What about noise? This package was installed in Drew�s 1994 325is 60,000 miles ago. �I expected a trade-off when putting the aluminum flywheel on but the rattle is way less than what I was scared into believing. The rattle is not there all the time. And when I do hear it, I know what it is and immediately dismiss it. I�ve never had a bystander tell me to get my car checked out. And I�ve never had a passenger comment on it � they just ask why I�m revving the car so high� Without a doubt this will be a repeat mod on a future car. I�m using the regular Red Line MTL oil too.�

    This Clutch & Flywheel Package Fits:
    E36 328i, 328is, 328iC - 1996,1997,1998
    E36 M3 - 1995, 1996, 1997, 1998, 1999. Makes a great overhaul package!
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    Turner Motorsport - Corporate Logo
    T#:29898454
    Part#: 048935LA01KT2
    Ships on Sep 21, 2026
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    Lightweight single mass flywheel paired with the Sachs clutch kit, perfect for naturally aspirated M20's! Fits early and late model cars.

    A perfect upgrade and refreshment for your M20! Free up lost horsepower with the lightened single mass flywheel and get back the life in your clutch pedal. This kit is put together with the idea of an OEM+ upgrade, perfect for people looking to refresh the driving experience of their M20 and get back the full potential of this tried and true motor.

    This kit includes everything you need to do the clutch and flywheel service on your M20. While you're in there it is a good idea also to purchase the common transmission seals, fluid, and mounting hardware which are listed below.

    Clutch Kit:

    Sachs OE replacement clutch disc - 21211223097
    Sachs pressure plate - 21211223026
    Sachs 323 throw-out bearing (taller bell housing/ETA models) - 21511204525
    Pilot bearing - 11211720310
    Turner Single-Mass Flywheel:

    Lightweight flywheel for quicker, effortless revs that improve throttle response and free up lost horsepower. Tested and approved by the engineering team at Turner Motorsport, tested in early, late, ETA and IS model E30s for confirmed fitment.
    Fits shallow and deep bell housing transmissions
    Ring gear suited for both starters (P# 12411726504 + 12411361874)
    Heavier than other lightweight flywheels, and lighter than OEM, it's like the Goldie Locks of flywheels - it's just right
    Reference pin for bell housing crank sensor
    Strong Single-Piece 4140 HT Steel construction
    Designed to be used with factory and OE clutches
    Weight savings between 5-14lbs depending on your OE flywheel

    Components strongly suggested while your transmission is out of the car.:

    Transmission Seals Kit - T#29898446
    Fluid - 75-90 or preferred fluid type (approximately 1.25 liters)
    Transmission Mounting hardware - T#30197962

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    Turner Motorsport - Corporate Logo
    T#:15744082
    Part#: 026647TMS10
    Ships on Sep 21, 2026
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    JB Racing - Corporate Logo
    T#:3771
    Part#: 520-010-240
    Ships in 10 Business Days
    $ 602.00 USD
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    $ 602.00 USD
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    As Used on Project E36 M3
    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

    Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

    In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

    The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

    Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch). In addition to the standard replacement clutches, we also sell Sachs Performance sprung hub clutches that also work with the JB flywheels.

    Stock Flywheel Weight = 25.5lbs
    JB Flywheel Weight = 10.0lbs

    This item fits the following BMWs:
    1995-1999 E36 BMW M3
    1998-2002 Z3 BMW Z3 M Roadster M Coupe
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    JB Racing - Corporate Logo
    T#:3769
    Part#: 520-040-215
    Back Ordered
    11% off MSRP $ 765.00

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 679.00 USD
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    11% off MSRP
    $ 765.00

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 679.00 USD
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    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

    Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

    In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

    The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

    Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

    Stock Flywheel Weight = 27.0lbs
    JB Flywheel Weight = 9.0lbs

    This item fits the following BMWs:
    1989-1992 E30 BMW 318i 318is 318ic
    1992-1997 E36 BMW 318i 318is 318ti 318ic
    1996-1997 Z3 BMW Z3 1.9
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    JB Racing - Corporate Logo
    T#:2801
    Part#: 520-200-240
    In Stock
    $ 714.00 USD
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    $ 714.00 USD
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    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

    Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

    In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

    The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

    Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

    This JB flywheel replaces the stock flywheel and can be used with either the stock 228mm or stock 240mm clutch discs. Depending on the model you may have either clutch size in your car but this flywheel is compatible with both. You can install a 240mm clutch as a mild upgrade.

    Stock Flywheel Weight = 24-31.0lbs
    JB Flywheel Weight = 12.0lbs

    This item fits the following BMWs:
    2006-2010 E60 BMW - 525i, 528i, 530i
    2006-2013 E90, E91, E92, E93 BMW - 325i, 328i, 330i
    2007-2013 E82 BMW - 125i, 128i
    2006-2008 E85, E86 BMW - Z4 3.0i, Z4 3.0si
    2009-later E89 BMW - Z4 3.0i
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    JB Racing - Corporate Logo
    T#:302739
    Part#: 520-180-240
    Ships in 9 Business Days
    $ 602.00 USD
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    $ 602.00 USD
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    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

    Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

    In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

    The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

    Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch). In addition to the standard replacement clutches, we also sell Sachs Performance sprung hub clutches that also work with the JB flywheels.

    Stock Flywheel Weight = 25.0lbs
    JB Flywheel Weight = 10.0lbs

    This item fits the following BMWs:
    2001-2006  E46 BMW  M3 (6-speed manual only, not for SMG)
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    Spec Clutches - Corporate Logo
    T#:211063
    Part#: SB533H-2
    In Stock
    $ 839.00 USD
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    $ 839.00 USD
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    Tuning your N54/N55 with all of the bolt-on upgrades? Don't allow your clutch or flywheel let you down! The stock clutch is fine for a stock car or just a simple software upgrade. But anything more and it quickly becomes the weak link (especially with drag races or hard launches). The 135i/335i/535i/Z4 35i SPEC Stage 2+ clutch kit is perfect for owners who want a performance clutch that works great with simple bolt-on modifications and will have a minimum of downsides or trade-offs. SPEC has spent considerable time and effort on the 335i models to produce a performance clutch and flywheel package that holds up to track and drag strip demands but is also easy to live with for daily driving. This clutch kit is meant to be used only with a SPEC flywheel. Features: The flywheel has a peak torque rating of 545ft-lbs Limitations of the stock flywheel are eliminated Self-adjusting, like the factory design, and the engagement point can be adjusted Sprung hub clutch to be used with the single-mass flywheel with near-stock levels of noise, vibration, and refinement **Due to the nature of lightened single mass flywheels added "NVH" or "chatter" will or may occur during operation. Accompanying modifications can also increase or decrease the amount of "NVH" or "chatter" in the drivetrain. Please contact our sales team with any questions.**
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    Spec Clutches - Corporate Logo
    T#:3457425
    Part#: SB55SST
    Back Ordered
    $ 1,899.00 USD
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    $ 1,899.00 USD
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    SPEC Super Twin multi-disc clutch and flywheel kits are designed for street and track use in vehicles with extreme horsepower and torque (700 to 1500 lbs.-ft.). They offer near-stock drivability, tremendous life expectancy, a no shimming/setup bolt-in installation, and maintenance-free operation. With their all-billet construction, these assemblies are smooth and quiet. Super Twins are constructed with aircraft-grade aluminum and high-carbon billet steel milled to industry-leading .001 in. tolerances for perfect balance and actuation. Friction is provided by dampened, full-faced, carbon-graphite discs. Additional features of SPEC Super Twin multi-disc clutch and flywheel kits: Organic, fiber, and full-metallic versions are also available Flywheel and track-spec hardware are included in each kit *Rebuildable by SPEC or the end-user *Ideal for all types of use, including: street, drag racing, drifting, road racing, time-attack, pulling, and rally
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    Spec Clutches - Corporate Logo
    T#:341298
    Part#: SB60SST
    Ships in 4 Business Days
    $ 1,799.00 USD
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    $ 1,799.00 USD
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    When adding performance-enhancing modifications to your vehicle, you need a way to get the power to the wheels. The SPEC clutch kit is perfect for preventing premature wear and slippage during heavy acceleration. This kit is designed to hold up to 710 ft. lbs. For vehicles with SMG transmission only
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    Spec Clutches - Corporate Logo
    T#:387322
    Part#: SB53A-2
    In Stock
    $ 579.00 USD
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    $ 579.00 USD
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    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration.
    Spec Clutches - Corporate Logo
    T#:7036582
    Part#: SBB58A-2
    In Stock
    $ 749.00 USD
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    $ 749.00 USD
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    These kits feature a non-SAC mechanism pressure plate, which , deviating from the original design, provides a lighter rotating assembly, higher rpm capability and greater clamp load levels. Required for the install is a billet rebuildable flywheel that features a lightweight, low MOI design and infinite rebuildability. The billet aluminum flywheel weighs 14lbs, and billet steel 22 lbs.
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    JB Racing - Corporate Logo
    T#:4227
    Part#: 520-140-240
    In Stock
    $ 602.00 USD
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    $ 602.00 USD
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    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

    Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

    In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

    The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

    Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch). In addition to the standard replacement clutches, we also sell Sachs Performance sprung hub clutches that also work with the JB flywheels.

    Stock Flywheel Weight = 25.0lbs
    JB Flywheel Weight = 10.0lbs

    This item fits the following BMWs:
    1999-2002 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci (with 5-speed manual transmission)
    2001-2005 E46 BMW 325xi 330xi
    1997-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
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    Spec Clutches - Corporate Logo
    T#:397226
    Part#: SB531-2
    Ships in 4 Business Days
    10% off MSRP $ 759.00

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 683.99 USD
    Free Shipping
    10% off MSRP
    $ 759.00

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 683.99 USD
    Free Shipping

    Enhance Your Car's Performance with the Perfect Clutch-Flywheel Combination

    When it's time to replace your car's clutch, you face a crucial decision: upgrade or stick with stock? In many cases, upgrading is the preferred choice, especially when you pair the right clutch with a single mass flywheel. The secret to achieving the perfect blend of performance and driving experience lies in selecting a sprung hub clutch. This option allows you to enjoy the advantages of a single mass flywheel while eliminating issues like noise, vibration, and harshness (NVH), ensuring an outstanding driving performance.

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    JB Racing - Corporate Logo
    T#:3768
    Part#: 520-050-228
    Ships in 5 Business Days
    $ 630.00 USD
    Free Shipping
    $ 630.00 USD
    Free Shipping
    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

    Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

    In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

    The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

    Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

    The JB flywheel includes ignition trigger wheel.

    Stock Flywheel Weight = 19.5lbs
    JB Flywheel Weight = 8.0lbs

    This item fits the following BMWs:
    1987-1991 E30 BMW M3
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    JB Racing - Corporate Logo
    T#:3474
    Part#: 520-190-240
    Ships in 3 Business Days
    $ 672.00 USD
    Free Shipping
    $ 672.00 USD
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    This is a performance replacement for BMW Part # 21207533868 Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

    Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

    In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

    The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

    Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

    The JB Flywheel includes the pilot bearing mounted in the flywheel hub, just like the factory configuration.

    Stock Flywheel Weight = 25.0lbs
    JB Flywheel Weight = 10.5lbs

    This item fits the following BMWs:
    2002-2005 E46 BMW 325i 330i (with 6-speed manual transmission)
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    Spec Clutches - Corporate Logo
    T#:341709
    Part#: SB53S-2
    Ships in 4 Business Days
    $ 599.00 USD
    Free Shipping
    $ 599.00 USD
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    These kits feature a non-SAC mechanism pressure plate, which , deviating from the original design, provides a lighter rotating assembly, higher rpm capability and greater clamp load levels. Required for the install is a billet rebuildable flywheel that features a lightweight, low MOI design and infinite rebuildability. The billet aluminum flywheel weighs 14lbs, and billet steel 22 lbs.
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    Spec Clutches - Corporate Logo
    T#:597416
    Part#: SB55S-2
    Back Ordered
    $ 599.00 USD
    Free Shipping
    $ 599.00 USD
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    JB Racing - Corporate Logo
    T#:385699
    Part#: 520-060-228
    Ships on Aug 31, 2026
    $ 581.00 USD
    Free Shipping
    $ 581.00 USD
    Free Shipping
    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

    Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

    In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

    The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

    Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

    This flywheel replaces the stock original single-mass flywheel and should only be used with the corresponding 'single-mass' clutch kit. According to BMW the single mass flywheel was installed in all 325i up to 12/86 production date but we have seen some later cars with a single-mass flywheel. The age of the car almost guarantees one or more clutch replacements and possibly a change to the original flywheel as well. You may not know which flywheel is currently installed until the flywheel cover or the transmission is removed.

    Stock Flywheel Weight = 18.0lbs
    JB Flywheel Weight = 8.0lbs

    This item fits the following BMWs:
    1984-1991  E30 BMW  325i 325ic 325is (with single-mass flywheel)
    1989-1990  E34 BMW  525i (with single-mass flywheel)
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    Spec Clutches - Corporate Logo
    T#:394254
    Part#: SB533-2
    In Stock at Vendor
    $ 799.00 USD
    Free Shipping
    $ 799.00 USD
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    The Stage 3+ is for cars making serious levels of boost and torque. If you have upgraded turbos or a single-turbo conversion, or have checked off the list of full bolt-ons, this will be a very capable clutch for you. This clutch is designed to work only with a SPEC single-mass flywheel and avoid the pitfalls of the stock OEM flywheel. The stock dual mass flywheel uses springs and rubber to isolate vibrations from the engine and transmission. However, on high mileage or abused flywheels the rubber can break down and the springs will become weak. A worn dual mass flywheel limits the amount of torque you can put out. It will affect clutch engagement, shifts, and power delivery. In some cases a total flywheel failure can rip apart the flywheel, clutch, and even transmission housing. With the SPEC single-mass flywheel the limitations of the stock flywheel are eliminated. The SPEC flywheel is a single mass design (no internal springs or rubber to fail) and is offered in a steel or aluminum material. The steel will better dampen vibration than the aluminum so it's the better choice for street use. The aluminum will have greater vibration and noise (gearbox rattle) that may not be acceptable for everyone. The clutch in this Stage 3+ kit is a sprung hub design so SPEC has done all they can to minimize the noise and vibration. It's also self-adjusting, like the factory design, and the engagement point can be adjusted. For use with SPEC Billet Flywheel (E-Chassis cars) or (F-Chassis cars)
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    JB Racing - Corporate Logo
    T#:3772
    Part#: 520-090-240
    Ships in 10 Business Days
    $ 581.00 USD
    Free Shipping
    $ 581.00 USD
    Free Shipping
    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

    Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

    In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

    The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

    Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable.

    Stock Flywheel Weight = 16.0lbs
    JB Flywheel Weight = 8.0lbs

    This item fits the following BMWs:
    1991-1995 E34 BMW M5
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    JB Racing - Corporate Logo
    T#:3647
    Part#: 520-110-215
    Ships in 3 Business Days
    $ 581.00 USD
    Free Shipping
    $ 581.00 USD
    Free Shipping
    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

    Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

    In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

    The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can be rebuilt too with a new clutch contact surface.

    Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

    Stock Flywheel Weight = 16.5lbs
    JB Flywheel Weight = 8lbs

    This item fits the following BMWs:
    1974-1976 2002 BMW 2002
    1977-1983 E21 BMW 320i
    1984-1985 E30 BMW 318i
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    Spec Clutches - Corporate Logo
    T#:597413
    Part#: SB553H-2
    In Stock at Vendor
    $ 839.00 USD
    Free Shipping
    $ 839.00 USD
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    Spec Clutches - Corporate Logo
    T#:340444
    Part#: SB663H
    Ships in 3 Business Days
    Starting at $ 869.00 USD
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    Starting at $ 869.00 USD
    Free Shipping
    The SPEC Stage 2 clutch is a premium, no compromises heavy-duty clutch upgrade for the 2001-2006 E46 M3 (manual transmission). Where the stock clutch is well-known for premature wear when driven hard and the factory dual mass flywheel is a known failure point, the SPEC clutch delivers with an over-engineered, performance-oriented clutch solution. The single carbon-Kevlar clutch is rated at 545 ft-lbs, more than enough for the naturally-aspirated S54 engines. A heavy-duty pressure plate and throw-out bearing complete the package.

    The stock clutch in the S54 cars is not a terrible clutch and it is not under-rated (it's the same clutch disc used in the E39 M5). Our tuned M3 street and race cars have used the stock clutch with almost 400hp with only the occassional slip. But if the clutch is not grabbing like you want it to, or your tuning plans will include forced induction, a heavy-duty clutch is what will be needed. The SPEC Stage 2 clutch consists of a carbon-Kevlar friction material paired with a heavy-duty pressure plate. The clutch is stronger and grabs harder than the factory clutch. It has a much more robust feel and engagement. And with this specification the clutch will never be a weak point. The SPEC clutch is designed to work with the stock dual mass flywheel or the SPEC single-mass flywheel (steel or aluminum).

    The real weak point in the driveline is in the flywheel. The stock dual-mass flywheel has rubber damper discs inside that will wear out over time. Heat and aggressive driving will accelerate their wear. Even if the clutch contact surface is not showing wear the inner rubber linings most likely are. On most clutch replacements we strongly advise getting a new flywheel at the same time to avoid duplicating the work. You can use the SPEC clutch with the stock or SPEC flywheel. Both the SPEC steel and aluminum flywheels are lighter than stock and will be single-mass. There will be a lot more noise and 'gearbox chatter' with the aluminum but the tradeoff is a much better acceleration and quicker revving. For daily driver commuting you will probably be happiest with the stock flywheel. For the ultimate in sports car feel use the aluminum. For the best of both worlds select the SPEC steel flywheel. It will not fail like the dual mass design but still has enough mass to dampen most engine vibrations.

    SPEC Clutch is one of the premier clutch and flywheel suppliers to the tuner market. They are often found on the most highly tuned import and domestic vehicles. They are recent players in the German car community with a special focus on the newer turbo BMW models with high torque output. SPEC has been proven time after time to provide superior performance, drivability, and longevity to the most hardcare enthusiasts around the globe.

    E46 M3 SPEC Clutch Kit contents:
    + carbon-Kevlar clutch disc
    + heavy-duty pressure plate
    + heavy duty billet throw-out bearing

    This item fits the following BMWs:
    2001-2006 E46 BMW M3 with 6 speed manual transmission
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    Spec Clutches - Corporate Logo
    T#:341710
    Part#: SB532-2
    In Stock
    $ 790.99 USD
    Free Shipping
    $ 790.99 USD
    Free Shipping

    SPEC's Stage 2 clutch features a full faced pure Kevlar disc complete with steel backing. This lining offers outstanding drivability like the Stage 1 kit, with an increased torque capacity and a longer life. The hub is double sprung with built-in spring reliefs for flexibility, along with heat treatment for added strength and durability. This clutch is best served in any situation from daily driven on the street, to drag or autocross racing events.

    Kit includes:

    Pressure plate
    Clutch disc
    Pilot bearing
    Clutch Release Bearing
    Clutch Alignment Tool
    Clutch fork
    Designed to be used with billet single mass flywheel

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    JB Racing - Corporate Logo
    T#:1339
    Part#: 520-150-240
    In Stock
    $ 903.00 USD
    Free Shipping
    $ 903.00 USD
    Free Shipping
    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

    Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

    In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

    The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

    Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

    Stock Flywheel Weight = 33.0lbs
    JB Flywheel Weight = 13.0lbs

    This item fits the following BMWs:
    1997-2003 E39 BMW 540i
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    JB Racing - Corporate Logo
    T#:3770
    Part#: 520-080-240
    Ships in 9 Business Days
    $ 630.00 USD
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    $ 630.00 USD
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    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

    Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

    In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

    The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

    Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

    Stock Flywheel Weight = 22.0lbs
    JB Flywheel Weight = 8.5lbs

    This flywheel includes the ignition trigger wheel.

    This item fits the following BMWs:
    1982-1987 E23 BMW 733i 735i
    1982-1989 E24 BMW 633csi 635csi M6
    1985-1988 E28 BMW 535i 535is M5
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    Spec Clutches - Corporate Logo
    T#:209171
    Part#: SB533F-2
    In Stock
    $ 979.00 USD
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    $ 979.00 USD
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    The Stage 3+ is for cars making serious levels of boost and torque. If you have upgraded turbos or a single-turbo conversion, or have checked off the list of full bolt-ons, this will be a very capable clutch for you. This clutch is designed to work only with a SPEC single-mass flywheel and avoid the pitfalls of the stock OEM flywheel. The stock dual mass flywheel uses springs and rubber to isolate vibrations from the engine and transmission. However, on high mileage or abused flywheels the rubber can break down and the springs will become weak. A worn dual mass flywheel limits the amount of torque you can put out. It will affect clutch engagement, shifts, and power delivery. In some cases a total flywheel failure can rip apart the flywheel, clutch, and even transmission housing. With the SPEC single-mass flywheel the limitations of the stock flywheel are eliminated. The SPEC flywheel is a single mass design (no internal springs or rubber to fail) and is offered in a steel or aluminum material. The steel will better dampen vibration than the aluminum so it's the better choice for street use. The aluminum will have greater vibration and noise (gearbox rattle) that may not be acceptable for everyone. The clutch in this Stage 3+ kit is a sprung hub design so SPEC has done all they can to minimize the noise and vibration. It's also self-adjusting, like the factory design, and the engagement point can be adjusted. For use with SPEC Billet Flywheel (E-Chassis cars) or (F-Chassis cars)
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    Spec Aluminum Single Mass Flywheel - E9X 335 (01/2009+)
    Designed for use with SPEC SB53X-2 clutch kits
    Spec Clutches - Corporate Logo
    T#:342330
    Part#: SB53A-3
    Back Ordered
    $ 579.00 USD
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    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration.
    JB Racing - Corporate Logo
    T#:16606
    Part#: 520-160-240
    Ships in 9 Business Days
    $ 903.00 USD
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    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

    Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

    In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

    The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

    Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

    Stock Flywheel Weight = 40.0lbs
    JB Flywheel Weight = 13.0lbs

    This item fits the following BMWs:
    1999-2003 E39 BMW M5
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    DKM - Corporate Logo
    T#:640069
    Part#: MS-006-076
    Ships on Jan 8, 2027
    $ 1,299.99 USD
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    $ 1,299.99 USD
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    Working in collaboration with Competition Clutch, the up and coming German automotive performance company DKM has released a new line of high quality clutches made to satisfy your stock and modified performance needs! If you're having problems keeping power to the wheels, DKM has the solution. Their design, using high-grade materials, gives you increased strength and heat tolerance preventing wear and fade, ensuring increased torque capacity, quicker shifts, and a longer clutch life. Tracking your vehicle is all fun and games until your start burning through clutches as fast as you can afford to replace them. To end this cycle, the MS Twin Disc Clutch Kit is designed to hold up to 100 to 200% more torque capacity and provide you with a much improved clutch life span. The two organic disc setup provides additional contact surface areas to more evenly distribute pressure and heat for both a boost in performance and wear prevention. Kit Contents: Pressure Plate Two Organic Discs Steel Single Mass Flywheel Pilot Bearing/Bushing and Throw-out Bearing (when applicable) Alignment Tool **Due to the nature of lightened single mass flywheels added "NVH" or "chatter" will or may occur during operation. Accompanying modifications can also increase or decrease the amount of "NVH" or "chatter" in the drivetrain. Please contact our sales team with any questions.**
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    Spec Clutches - Corporate Logo
    T#:343306
    Part#: SB60ST
    Ships in 10 Business Days
    $ 2,099.00 USD
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    $ 2,099.00 USD
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    JB Racing - Corporate Logo
    T#:3762
    Part#: 520-100-228
    In Stock
    $ 581.00 USD
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    $ 581.00 USD
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    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

    Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

    In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

    The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can be rebuilt too with a new clutch contact surface.

    Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

    Stock Flywheel Weight = 16.5
    JB Flywheel Weight = 8lbs

    This item fits the following BMWs:
    1968-1973 2002 BMW 2002 2002tii
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    JB Racing - Corporate Logo
    T#:3774
    Part#: 520-030-240
    In Stock
    $ 714.00

    This product was last offered at the strikethrough price on
    06-08-2026

    $ 652.99 USD
    Limited Qty Sale
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    $ 714.00

    This product was last offered at the strikethrough price on
    06-08-2026

    $ 652.99 USD
    Limited Qty Sale
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    BMW E36 328i, Z3 2.8 JB Racing Lightweight Aluminum Flywheel offers a significant performance upgrade by replacing the heavy stock steel flywheel with a much lighter aluminum version. This JB Racing flywheel is designed to deliver faster acceleration, improved throttle response, and enhanced overall performance for your BMW.

    The modern stock flywheels are burdened with additional components meant to dampen vibrations, which unfortunately adds unnecessary weight. The JB Racing aluminum flywheel, weighing just 10.0 lbs compared to the stock 25.0 lbs, eliminates this excess mass, allowing more power to reach the wheels and reducing the energy wasted on spinning the flywheel. Engine builders prioritize lightweight flywheels when optimizing race engines for maximum efficiency, and the difference is especially noticeable in how quickly the engine revs and reaches its power band.

    This JB Racing lightweight flywheel is a direct replacement for the stock flywheel and is compatible with the factory BMW organic clutch. This compatibility ensures that you can use standard replacement clutches, making maintenance simple and cost-effective. The flywheel can also be resurfaced for a fresh contact surface, so there’s no need to buy a new one when it’s time to replace the clutch.

    While single-mass aluminum flywheels like this one may result in slightly more noise and vibration compared to dual-mass designs, this can be managed with heavier transmission oil and sprung hub clutches, such as the Sachs Performance clutch available through Turner Motorsport.

    • Faster acceleration: Reduces the rotational mass for quicker engine response.
    • Improved throttle response: Engine revs more freely and builds RPM faster.
    • Enhanced performance: More power delivered to the wheels for better driving dynamics.
    • Cost-effective maintenance: Compatible with factory BMW organic clutches and can be resurfaced.
    • Direct replacement: Easy upgrade with no modifications required.

    Vehicle Compatibility:

    • 1996-1999 E36 BMW 328i, 328is, 328ic
    • 1997-1998 Z3 BMW Z3 2.8
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    Spec Clutches - Corporate Logo
    T#:583816
    Part#: SB801KT
    Ships in 4 Business Days
    $ 1,268.00 USD
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    $ 1,268.00 USD
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    JB Racing - Corporate Logo
    T#:3763
    Part#: 520-070-228
    Ships in 6 Business Days
    $ 630.00 USD
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    $ 630.00 USD
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    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

    Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

    In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

    The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

    Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

    The JB flywheel includes ignition trigger wheel.

    This flywheel replaces the stock original single-mass flywheel and should only be used with the corresponding 'single-mass' clutch kit. According to BMW the single mass flywheel was installed in all 325e up to 5/86 production date but we have seen some later cars with a single-mass flywheel. The age of the car almost guarantees one or more clutch replacements and possibly a change to the original flywheel as well. You may not know which flywheel is currently installed until the flywheel cover or the transmission is removed.

    Stock Flywheel Weight = 24.0lbs
    JB Flywheel Weight = 8.5lbs

    This item fits the following BMWs:
    1984-1988 E30 BMW 325e 325es (with single mass flywheel)
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    Spec Clutches - Corporate Logo
    T#:340442
    Part#: SB533H-2
    In Stock at Vendor
    Starting at $ 1,438.00 USD
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    Starting at $ 1,438.00 USD
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    Tuning your N54/N55 with all of the bolt-on upgrades? Don't allow your clutch or flywheel let you down! The stock clutch is fine for a stock car or just a simple software upgrade. But anything more and it quickly becomes the weak link (especially with drag races or hard launches). The 135i/335i/535i/Z4 35i SPEC Stage 2+ clutch kit is perfect for owners who want a performance clutch that works great with simple bolt-on modifications and will have a minimum of downsides or trade-offs. SPEC has spent considerable time and effort on the 335i models to produce a performance clutch and flywheel package that holds up to track and drag strip demands but is also easy to live with for daily driving. This clutch kit is meant to be used only with a SPEC flywheel.

    What was most important to them was offering a kit that has stock-like clutch pedal effort but will grab and hold when the car has been mildly tuned. Full bolt-on upgrades like software, intake, FMIC, E85 mix, or methanol demand a better clutch. The Stage 2+ with the flywheel has a peak torque rating of 545ft-lbs. With the SPEC single-mass flywheel the limitations of the stock flywheel are eliminated. The clutch in this Stage 2+ kit is self-adjusting, like the factory design, and the engagement point can be adjusted. The clutch disc has a sprung hub so it can be used with the single-mass flywheels with near-stock levels of noise, vibration, and refinement. See comments below for characteristics of each.

    The Stage 2+ can be configured a few different ways depending on how you intend to use the car -

    #SB533H-2 VariantUseComments
    "Sport"
    SPEC steel flywheel
    daily driving;
    occassional drag strip
    Use this with the SPEC steel single-mass flywheel.
    The clutch will be stiffer than the factory design but it will grab harder and stay connected with far less chance of slippage. The engagement point is changed but most drivers adjust within the first 100 miles. The failure-prone dual-mass flywheel is eliminated and a steel single-mass is used instead. Expect more noise and vibration from the steel but better reliability and slightly better performance.
    "Super Sport"
    SPEC aluminum flywheel
    more drag strip than streetUse this with the SPEC aluminum single-mass flywheel.
    The clutch will be stiffer than the factory design but it will grab harder and stay connected with far less chance of slippage. The engagement point is changed but most drivers adjust within the first 100 miles. The failure-prone dual-mass flywheel is eliminated and a lightweight aluminum single-mass is used instead. Expect a lot more noise and vibration with aluminum ("gearbox rattle") but better reliability and better performance. The engine will rev a lot faster too.

    This clutch is what we recommend if your tuning plans will only be bolt-on upgrades and you want to eliminate the dual-mass flywheel (as a potential failure point). If you plan to go beyond bolt-ons, such as upgrading turbos or single turbo, we strongly recommended using the Stage 3+ clutch. The Stage 2+ offers the best drivability for 90% of the tuned 335s out there but when going beyond bolt-on upgrades it would be best to go to a more advanced clutch stage.

    SPEC Clutch is one of the premier clutch and flywheel suppliers to the tuner market. They are often found on the most highly tuned import and domestic vehicles. They are recent players in the German car community with a special focus on the newer turbo BMW models with high torque output. SPEC has been proven time after time to provide superior performance, drivability, and longevity to the most hardcore enthusiasts around the globe.

    E9X 335 SPEC Clutch Stage 2+ Kit contents:
    + carbon/semi-metallic and Kevlar clutch disc
    + heavy-duty pressure plate
    + heavy duty throw-out bearing
    + pilot bearing
    + clutch fork
    + alignment tool

    Additional items we recommend:
    pressure plate mounting bolts
    flywheel mounting bolts (if removing flywheel)
    ball pin
    spring clip
    rear main seal (if car has more than 70,000 miles)
    input shaft seal
    output shaft seal
    exhaust gaskets

    This item fits the following BMWs:
    2008-2013 E82 BMW 135i 135is 1M Coupe
    2007-2013 E90 BMW 335i 335xi 335i xDrive - Sedan
    2007-2013 E92 BMW 335i 335is 335xi 335i xDrive - Coupe
    2007-2013 E93 BMW 335i 335is - Convertible
    2008-2010 E60 BMW 535i 535xi 535i xDrive
    2009+ E89 Z4 Z4 35i Z4 35is (from February 2009 production date)
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    Spec Aluminum Single Mass Flywheel
    For vehicles with production date from 01/2009
    Spec Clutches - Corporate Logo
    T#:589576
    Part#: SB53A-4
    Ships in 4 Business Days
    $ 639.99 USD
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    $ 639.99 USD
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    Six Bolt Flywheel - NOTE: Not for models with the DCT transmission
    JB Racing - Corporate Logo
    T#:340509
    Part#: WCCLUTCH
    Ships in 5 Business Days
    Starting at $ 1,999.00 USD
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    Starting at $ 1,999.00 USD
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    The ultimate in a racing flywheel and clutch! This was developed for use in our E36 and E46 World Challenge Touring Cars. The combined weight of the clutch and flywheel is only 11lbs!!!

    This multi-disc (2 or 3 disc setups) offer a minimal flywheel mass (enough to include a factory ring gear for the starter) and a small 5.5" clutch assembly rated to 500hp. By saving as much weight as possible less energy is used in simply spinning the flywheel/clutch assembly and that means a lot more power and torque is available at the drive wheels. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines and this is among the most advanced and lightest racing clutch kits available for your BMW race car.

    The JB Ultra-Light Performance racing clutch is available in 2-disc or 3-disc setups. We used the 5.5"/140mm size in our Touring Cars but larger sizes are available too. This is a turn-key racing clutch and flywheel kit that you don't have to engineer or spec yourself. This is the same clutch setup we used when winning the 2003 and 2004 Touring Car Championships - the quality and performance is unquestionable. That series also employed standing starts at each race and this clutch setup performed flawlessly with nearly a full season of racing on them before needing a change.

    JB Ultra-Light flywheels include:
  • precision CNC machined aluminum flywheel
  • zero-balanced up to 10,000 RPM
  • replaceable hardened steel clutch friction surface
  • Helicoil threaded inserts
  • high-strength grade 10.9 hardware
  • multi-disc racing clutch with Performance racing pressure plate
  • JB Racing throw-out bearing with custom bobbin
    This is a true racing clutch and will not function as a street-able clutch at all. It behaves as an on/off switch with no slippage allowed. Extreme care must be used when driving on to trailers and around the paddock. But when driven correctly the life span of this clutch is amazing - we could get a full season of racing a 300hp M54 from this clutch setup including standing starts at every race! Replacement clutch components and flywheel rebuilding are available.

    A properly adjusted clutch stop is required for use with this clutch kit.

    Stock Flywheel + Clutch Weight = 45+lbs
    JB Ultra-Light Flywheel & Clutch Weight = 11lbs

    This item fits the following BMWs:
    1992-1999 E36 BMW 325i 325is 328i 328is M3
    1999-2006 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci (5-speed)
    1997-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe
    2003-2005 E85 BMW Z4 2.5i (5-speed)
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    JB Racing - Corporate Logo
    T#:3749
    Part#: 520-120-228
    In Stock
    $ 854.00 USD
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    $ 854.00 USD
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    Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

    Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

    In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

    The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

    Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

    The JB flywheel includes ignition trigger wheel.

    This flywheel replaces the stock original dual-mass flywheel and should only be used with the corresponding 'dual-mass' clutch kit. According to BMW the dual mass flywheel was installed in all 325/325e from 5/86 on but we have seen some later cars with a single-mass flywheel. The age of the car almost guarantees one or more clutch replacements and possibly a change to the original flywheel as well. You may not know which flywheel is currently installed until the flywheel cover or the transmission is removed.

    Stock Flywheel Weight = 27.5lbs
    JB Flywheel Weight = 10.0lbs

    This item fits the following BMWs:
    1984-1988 E30 BMW 325e 325es (with dual mass flywheel)
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    Spec Clutches - Corporate Logo
    T#:381004
    Part#: SB453H
    Ships in 4 Business Days
    $ 849.00 USD
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    $ 849.00 USD
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    Enhance Vehicle Performance with SPEC Clutch Kit

    Upgrade your vehicle's performance with the SPEC clutch kit, engineered to efficiently transfer power to the wheels during high-performance driving scenarios. Prevent premature wear and slippage with this kit, offering a torque capacity of up to 456ft.lbs. When combined with the SPEC lightweight aluminum flywheel, experience rapid and efficient engagement.

    Designed for a variety of applications including street, drag, autocross, road racing, pulling, rallye, and drift, this kit bridges the gap between stage 2 and stage 3, delivering enhanced drivability and engagement quality.

    Key Features:

    • Multi-friction disc with carbon semi-metallic and Kevlar
    • 15-20% higher torque capacity than stage 2 clutches
    • Double sprung hub with spring cover relieves for flexibility
    • Heat-treated components for enhanced strength and durability

    Experience increased acceleration, reduced turbo lag, improved mid-range torque, and decreased parasitic drag for increased crank efficiency with the SPEC clutch kit. Compatible with vehicles manufactured between 2006-2009.

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    JB Racing - Corporate Logo
    T#:878
    Part#: 520-010S-S873G
    Ships in 10 Business Days
    $ 1,488.61 USD
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    $ 1,488.61 USD
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    This lightweight aluminum flywheel w/ Heavy Duty "sprung-hub" clutch package is the best-engineered solution for E46 325 and 330 models with the 6-speed transmission, Z4 2.5/3.0, and Z4 M Roadster and M Coupe. Instead of picking a clutch from another car that may or may not work at all, the engineers at JB Racing have taken all of the guess work out of this upgrade and incorporated a Sachs sport sprung-hub clutch with the correct pressure plate and combined it with their most-popular aluminum lightweight flywheel. The Sachs HD clutch disc has a sprung hub to minimize noise and vibration and organic linings to give the feel and engagement of a stock clutch. Mixing and matching of the incorrect clutch, pressure plate, and flywheel components can lead to inconsistent engagement and feel -- why make your clutch feel worse?

    In addition, the Sachs HD pressure plate will clamp with greater force -- allowing approximately 350 ft-lbs of torque, which makes it an obvious upgrade from the stock clutch kit. And with the aluminum flywheel weight savings is substantial over the stock dual-mass flywheel - which allows your motor to spool up faster and transmit more HP to the ground.

    Because Sachs is an OE supplier to most German cars, replacement parts are just a phone call away. This kit uses the stock throw-out bearing (included in the price).

    Z4 M Sport Clutch and Flywheel Applications:
    2006-2008 E85 Z4, E86 Z4 Z4 M Roadster, Z4 M Coupe
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