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BMW Drivetrain Parts

Building your perfect BMW is more than just adding horsepower and stiff suspension. Your drivetrain needs attention in order to deliver power effectively. Most BMWs feature comfortable clutch discs, heavy flywheels, long shifter throws, and open differentials. The drivetrain transmits power to the wheels, but can also be a source of power loss when it is designed for comfort rather than performance. Everything on this page will help you improve your power delivery and driving experience by providing custom Limited Slip Differentials, Short Shift Conversions, Performance Clutch Discs, Lightweight Flywheels, and anything else your BMW needs to be the perfect driving experience.

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Rogue Engineering - Corporate Logo
T#:641617
Part#: TM
Back Ordered
$ 69.00 USD
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$ 69.00 USD
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Unlike other aftermarket mounts, the mounting plate and studs of our mounts have been Zinc-plated to prevent corrosion. Rogue Engineering Transmission Mounts are sold as a pair, and come with Grade 8 Zinc plated hardware. Rogue Engineering transmission mounts are designed with street comfort in mind while still reducing left and right movement of the transmission. By using a cylindrical shape instead of the factory hourglass like design and utilizing Neoprene rubber deflection can be significantly reduced, minimizing unwanted transmission movement while maintaining vibration dampening characteristics.
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Burger Motorsports - Corporate Logo
T#:2513299
Part#: BMWCLUTCHVAVLE
Ships in 1 Business Day
$ 29.99 USD
Free Shipping on orders $49 and up

Enhance the performance of your stick shift BMW with the BMS clutch valve, a must-have upgrade for serious BMW enthusiasts. This high-performance replacement replaces the factory clutch delay valve, resulting in quicker shifts, longer clutch life, and improved 0-60 times. Designed with CNC machined precision, it installs quickly using factory-like connections with no modifications required. Made in the USA, this clutch valve is essential for maximizing the driving experience of your BMW.

Benefits:

  • Replaces factory clutch delay valve for improved performance
  • Quicker shifts and improved 0-60 times
  • Longer clutch life
  • Easy installation with factory-like connections
  • Made in the USA
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GSP North America - Corporate Logo
T#:389719
Part#: NCV27503
In Stock
$ 164.99 USD
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$ 164.99 USD
Free Shipping

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

 

This item fits the following BMWs: 

E36 BMW M3

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GSP North America - Corporate Logo
T#:389693
Part#: NCV27526
In Stock
$ 104.99 USD
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$ 104.99 USD
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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

 

This item fits the following BMWs: 

E24 BMW 633CSi M6

E28 BMW 524td 528e 533i 535i 535is M5

E34 BMW 530i 535i 540i M5

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GSP North America - Corporate Logo
T#:389698
Part#: NCV27527
Ships in 2 Business Days
$ 104.99 USD
Free Shipping
$ 104.99 USD
Free Shipping

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

 

This item fits the following BMWs: 

E34 BMW 525i 525iT 530i 535i

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Rogue Engineering - Corporate Logo
T#:554020
Part#: OCT.E46.420
Back Ordered
$ 449.00 USD
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$ 449.00 USD
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One of the most satisfying upgrades you can make to your BMW is to its factory shifter mechanism. By reducing the shifter's throw, you can give your manual transmission BMW a sportier, more precise feel. However, with so many different "short shift kits" out there, how can you be sure you're making the right decision? With the introduction of the Rogue Engineering OCTANE short shift kit, the choice is now crystal clear!

Rogue Engineering refuses to compromise with "lever substitution" as a method of short shift kit development. Rather than using actual test vehicles for their products, some companies actually dig through OEM factory parts diagrams to determine which factory levers can be substituted with others. This "lever substitution" method of introducing product is unacceptable. These shift kits have been developed and perfected through years of experience in proven short shifter technology, by Co-Founder, Ben Liaw. As longtime BMW enthusiasts know, Ben was single-handedly responsible for introducing and developing the idea of affordable, BMW factory-like, short shift kits for late model BMWs (BL/SS for those young enough to remember!). 

Rogue Engineering idea of a short shift kit is not substituting levers in place of factory ones just because "they fit". Throughout the 80s until recently, BMW was notorious for using only a few specific shifter levers for their manual transmission vehicles. For other companies, making just a few "replacement levers" and offering them in place of those factory part numbers was an easy way of calling it a short shift kit. Unfortunately, for those companies, BMW started using many different part numbers making it more difficult to just "swap in a lever".

Rogue Engineering only develops it's short shift kit with test vehicles in their facility, testing numerous prototypes, offering others to test it before settling on its final design. They feel that this old school, real world testing is the best way when modifying OEM ergonomic, sensory-based controls.

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GSP North America - Corporate Logo
T#:389705
Part#: NCV27522
In Stock
$ 90.99 USD
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$ 90.99 USD
Free Shipping

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

 

This item fits the following BMWs: 

E46 BMW 325xi 330xi

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GSP North America - Corporate Logo
T#:389709
Part#: NCV27523
In Stock
$ 117.99 USD
Free Shipping
$ 117.99 USD
Free Shipping

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

 

This item fits the following BMWs: 

E46 BMW 325xi 330xi

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JB Racing - Corporate Logo
T#:3771
Part#: 520-010-240
Ships in 9 Business Days
$ 602.00 USD
Free Shipping
$ 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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GSP North America - Corporate Logo
T#:27238720
Part#: NCV27043
In Stock
$ 131.99 USD
Free Shipping on orders $49 and up
GSP New CV Axles are made from only the finest materials using premium steel, boot, and grease. GSP CV Axles are designed to exceed the original equipment specifications.for a trouble free ride. FEATURES & BENEFITS Extensive quality control and testing process to ensure a long-lasting performance Heat-treated components provide premium strength, increased tensile, and extended service life GSP Silent Ride Technology OE designed and manufactured CV joints to provide a quiet ride Premium grade neoprene boots provide protection against dirt and debris in driving conditions Specially formulated moly grease for optimal performance at high temperatures High-quality stainless-steel clamps for heavy duty strength and durability Spline rolled for precise durable fitment GSP CV Axles are covered with a limited lifetime warranty SPECIFICATIONS ABS Tone Ring Included: No Boot Material: Neoprene Compressed Length: 550 Inboard Spline Quantity: 27 Prop 65 Yes/No: Yes Axle Nut Included: NO California Proposition 65: Yes Inboard Joint Type: Male Outboard Joint Type: Conventional
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Burger Motorsports - Corporate Logo
T#:21045476
Part#: BMS-335-TC-WTH
Back Ordered
$ 573.00 USD
Free Shipping on orders $49 and up
Everyone knows that heat is the enemy of your automatic transmission. And everyone knows that higher power levels generate more transmission fluid heat. Now you can extend the life of your automatic transmission by installing the new Burger Motorsports High Capacity Trans Cooler kit. This unique plug-and-play kit replaces your factory coolant to trans fluid heat exchanger with a high-capacity fender-mounted air-to-trans fluid radiator. Includes all mounting hardware, lines, and coolant caps required for installation. Installs inside the driverside fender providing ample airflow over the large cooling core via existing openings. The result is dramatically reduced transmission temperature and extended transmission life. This kit is strongly suggested for any BMW E chassis automatic running larger than factory turbos. The thermostat maintains the oil exiting the transmission at the rated minimum temperature in most conditions. Without a thermostat, the transmission fluid coolers are likely to over-cool the fluid, delaying transmission warm-up and performing the critical function of bypassing the cooler until the oil has reached its minimum operating temperature. FEATURES AND BENEFITS Dissipates excess transmission fluid heat Reduces transmission fluid temperature Increases transmission life when racing Increases transmission oil capacity Fitment: 2008-2013 E81 E82 E87 Coupe and Hatchback 135i 2008-2013 E88 Convertible 135i Compatible with both RHD and LHD vehicles. Not compatible with manual transmissions.
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Burger Motorsports - Corporate Logo
T#:1347205
Part#: N54N55TRANSCOOL
In Stock
$ 444.99

This product was last offered at the strikethrough price on
06-16-2026

$ 399.00 USD
Free Shipping
$ 399.00 USD
Free Shipping
Everyone knows that heat is the enemy of your automatic transmission. And everyone knows that higher power levels generate more transmission fluid heat. Now you can extend the life of your automatic transmission by installing the new Burger Motorsports High Capacity Trans Cooler kit. This unique plug-and-play kit replaces your factory coolant to trans fluid heat exchanger with a high-capacity fender-mounted air-to-trans fluid radiator. Includes all mounting hardware, lines, and coolant caps required for installation. Installs inside the driverside fender providing ample airflow over the large cooling core via existing openings. The result is dramatically reduced transmission temperature and extended transmission life. This kit is strongly suggested for any BMW E chassis automatic running larger than factory turbos. FEATURES AND BENEFITS Dissipates excess transmission fluid heat Reduces transmission fluid temperature Increases transmission life when racing Increases transmission oil capacity Fitment: 2006-2011 E90 Sedan 335i/335ix 2006-2013 E90 E91 Sedan/Touring 335d (M57 diesel) 2006-2011 E91 Touring 335i/335ix 2011-2013 E92 Coupe 335is 2007-2013 E92 Coupe 335i/335ix 2006-2013 E93 Convertible 335i/335ix Compatible with both RHD and LHD vehicles. Not compatible with manual transmissions.
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HD/Perf Street Sprung
Must be used with ACT Flywheel 601010 or 601015
ACT - Corporate Logo
T#:567299
Part#: BM9-HDSS
In Stock
$ 897.00 USD
Free Shipping
$ 897.00 USD
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This kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability.
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GSP North America - Corporate Logo
T#:389676
Part#: NCV27990
Ships in 2 Business Days
$ 111.99 USD
Free Shipping
$ 111.99 USD
Free Shipping

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

 

This item fits the following BMWs: 

E82/88 BMW 128i

E46 BMW 323i 323is 325Ci 325i 325xi 328CI 328i 

E36 BMW 323is 328i 328is 

Z3 BMW 1.9 2.3i 2.5i 2.8 3.0i

Z4 BMW 2.5i 3.0i

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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
Free Shipping
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
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 = 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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Single Mass Flywheel Conversion Kit - N14 Engines
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:39599347
Part#: 874013
In Stock
$ 563.99

This product was last offered at the strikethrough price on
06-30-2026

$ 465.00 USD
$ 465.00 USD

JB Racing - Corporate Logo
T#:2801
Part#: 520-200-240
In Stock
$ 714.00 USD
Free Shipping
$ 714.00 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 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 8 Business Days
$ 602.00 USD
Free Shipping
$ 602.00 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). 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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Burger Motorsports - Corporate Logo
T#:637547
Part#: BMS-DSBB-F
Back Ordered
Starting at $ 129.00 USD
Free Shipping
Starting at $ 129.00 USD
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The BMS differential brace attaches the rear differential to the subframe allowing better launches, less wheel hop, and a more stable feeling rear chassis. Their unique one-piece construction eliminates welding weak points common on similar units. No logos or markings are visible for a stealth OEM appearance.
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Spec Clutches - Corporate Logo
T#:211063
Part#: SB533H-2
In Stock
$ 839.00 USD
Free Shipping
$ 839.00 USD
Free Shipping
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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GSP North America - Corporate Logo
T#:22591964
Part#: NCV27005
In Stock
$ 151.99 USD
Free Shipping on orders $49 and up

Choose GSP for Your Hub Assembly, Axle Shaft, and Loaded Strut Needs

Since 2004, GSP has been a trailblazer in the North American axle industry. With an extensive range of applications, a wide SKU count, and a track record of introducing the latest applications ahead of the competition, GSP is the go-to choice. In 2010, GSP expanded into hub assemblies and swiftly earned the trust of the industry, becoming the most reliable brand.

When it comes to your hub assembly, axle shaft, and loaded strut needs, you can have full confidence in GSP's expertise.

Key Features:

  • Superior quality based on long term development through ISO/TS16949 certifications
  • The strictest quality control standards to ensure the best end result to the customer
  • Constructed of high-quality materials for a superior product at a low price
  • Designed for application-specific needs
  • Consistently driving to offer the broadest catalog
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Spec Clutches - Corporate Logo
T#:341298
Part#: SB60SST
Ships in 3 Business Days
$ 1,799.00 USD
Free Shipping
$ 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#:3457425
Part#: SB55SST
Back Ordered
$ 1,899.00 USD
Free Shipping
$ 1,899.00 USD
Free Shipping
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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JB Racing - Corporate Logo
T#:4227
Part#: 520-140-240
In Stock
$ 602.00 USD
Free Shipping
$ 602.00 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). 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#:7036582
Part#: SBB58A-2
In Stock
$ 749.00 USD
Free Shipping
$ 749.00 USD
Free Shipping
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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GSP North America - Corporate Logo
T#:27238721
Part#: NCV27044
In Stock
$ 144.99 USD
Free Shipping on orders $49 and up
GSP New CV Axles are made from only the finest materials using premium steel, boot, and grease. GSP CV Axles are designed to exceed the original equipment specifications.for a trouble free ride. FEATURES & BENEFITS Extensive quality control and testing process to ensure a long-lasting performance Heat-treated components provide premium strength, increased tensile, and extended service life GSP Silent Ride Technology OE designed and manufactured CV joints to provide a quiet ride Premium grade neoprene boots provide protection against dirt and debris in driving conditions Specially formulated moly grease for optimal performance at high temperatures High-quality stainless-steel clamps for heavy duty strength and durability Spline rolled for precise durable fitment GSP CV Axles are covered with a limited lifetime warranty SPECIFICATIONS ABS Tone Ring Included: No Boot Material: Neoprene Compressed Length: 841 Inboard Spline Quantity: 27 Prop 65 Yes/No: Yes Axle Nut Included: NO California Proposition 65: Yes Inboard Joint Type: Male Outboard Joint Type: Conventional
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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#:597416
Part#: SB55S-2
Back Ordered
$ 599.00 USD
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$ 599.00 USD
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Spec Clutches - Corporate Logo
T#:397226
Part#: SB531-2
Ships in 3 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
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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
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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#:3474
Part#: 520-190-240
Ships in 2 Business Days
$ 672.00 USD
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$ 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 3 Business Days
$ 599.00 USD
Free Shipping
$ 599.00 USD
Free Shipping
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#:3768
Part#: 520-050-228
Ships in 4 Business Days
$ 630.00 USD
Free Shipping
$ 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.

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#:385699
Part#: 520-060-228
Ships on Sep 1, 2026
$ 581.00 USD
Free Shipping
$ 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 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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Single Mass Flywheel Conversion Kit
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Valeo - Corporate Logo
T#:39363094
Part#: 874015
Back Ordered
$ 649.99

This product was last offered at the strikethrough price on
06-30-2026

$ 491.00 USD
$ 491.00 USD
Spec Clutches - Corporate Logo
T#:394254
Part#: SB533-2
In Stock at Vendor
$ 799.00 USD
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$ 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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Spec Clutches - Corporate Logo
T#:593652
Part#: SBF10M5SST
Ships in 8 Business Days
$ 2,299.00 USD
$ 2,299.00 USD
If your clutch is slipping on your F10 M5 or F06/12/13 M6, it is time to upgrade! Luckily, SPEC clutch offers its very own high-performance clutches that are designed with power in mind. This Super Twin SST clutch and flywheel combo from SPEC is rated for 910ft lbs of torque and is perfect for either street or track use thanks to its IMSA inspired roots. Unlike your typical street and track clutch system, this kit from SPEC is also built with driveability in mind, remaining smooth and easy to use despite its increased torque capacity. Features: High capacity with smooth engagement and low pedal effort Billet construction with serviceable flywheel (the OE is not serviceable) Installs just like the OEM unit, despite all the differences Super Twin SST - Suitable for up to 910 ft-lbs of torque Super Twin ST Trim - Suitable for up to 1125 ft-lbs of torque Organic lining for a faster bed in than metallic units Included: SPEC Super Twin World Billet Steel Flywheel SPEC Super Twin World Clutch
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JB Racing - Corporate Logo
T#:3772
Part#: 520-090-240
Ships in 7 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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Burger Motorsports - Corporate Logo
T#:1316770
Part#: E9XDIFFBRACE-SM
Back Ordered
$ 99.00 USD
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$ 99.00 USD
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BMW E9X 335i BMS Differential Support Bracket Brace - Small Case

The BMW E9X 335i BMS Differential Support Bracket Brace - Small Case is a high-performance upgrade designed to enhance the stability and durability of the differential mount. Turner Motorsport offers this precision-engineered brace to reduce flex and movement of the differential, ensuring improved power transfer and handling. Ideal for high-performance driving or track use, this brace helps maintain proper alignment and extends the lifespan of your differential components.

Benefits:

  • Enhances differential stability by reducing flex and movement
  • Improves power transfer and handling performance
  • Precision-engineered for a perfect fit and reliable performance
  • Ideal for high-performance driving and track use
  • Extends the lifespan of differential components
  • Made from high-quality materials for durability and strength
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Spec Clutches - Corporate Logo
T#:597413
Part#: SB553H-2
In Stock at Vendor
$ 839.00 USD
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$ 839.00 USD
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JB Racing - Corporate Logo
T#:3647
Part#: 520-110-215
Ships in 2 Business Days
$ 581.00 USD
Free Shipping
$ 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 = 16.5lbs
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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Burger Motorsports - Corporate Logo
T#:49822560
Part#: BMSDSBBG
Ships on Sep 1, 2026
New Item
$ 229.00 USD
Free Shipping on orders $49 and up
For G-Chassis BMW & A90/A91 Toyota Supra High torque loads, hard launches, and aggressive driving expose the factory differential mounting’s built-in compliance. Under power, the differential can shift excessively, resulting in wheel hop, inconsistent traction, and increased stress on drivetrain components—issues that become more pronounced on tuned or track-driven cars. The BMS Differential Support Bracket Brace corrects this weakness by reinforcing the differential mounting point and securely tying it to the subframe. By controlling unwanted movement, the brace improves rear-end stability and ensures power is transferred to the ground more efficiently. Why Upgrade? OEM differential mounts favor NVH reduction over control. As torque output increases, that compliance translates into drivetrain shock and lost traction. This brace stiffens the system where it matters most, reducing flex and improving load management under acceleration. Performance Benefits Improved launch consistency Significant reduction in wheel hop Increased rear-end stability under load More precise and predictable power delivery Engineered for Demanding Use Designed around factory mounting points, the BMS Differential Support Bracket delivers precise OE-level fitment with increased structural rigidity. Its robust construction resists deflection under high torque, while upgraded hardware provides greater clamping force for long-term reliability. Fully bolt-on for straightforward installation on both stock and modified vehicles. Key Features Reinforces rear differential mounting Limits differential movement under load Enhances traction and drivetrain response Heavy-duty construction for high-performance applications Bolt-on installation using factory locations Compatible with G-chassis BMW and A90/A91 Supra A focused drivetrain upgrade for drivers who demand consistency, control, and durability at higher performance levels.
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Burger Motorsports - Corporate Logo
T#:1316771
Part#: E9XDIFFBRACE-LG
Ships in 1 Business Day
$ 99.00 USD
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$ 99.00 USD
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Spec Clutches - Corporate Logo
T#:340444
Part#: SB663H
Ships in 3 Business Days
Starting at $ 869.00 USD
Free Shipping
Starting at $ 869.00 USD
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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
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$ 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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Rogue Engineering - Corporate Logo
T#:554014
Part#: OCT.E46.GS6
Back Ordered
$ 295.00 USD
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$ 295.00 USD
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One of the most satisfying upgrades you can make to your BMW is to its factory shifter mechanism. By reducing the shifter's throw, you can give your manual transmission BMW a sportier, more precise feel. However, with so many different "short shift kits" out there, how can you be sure you're making the right decision? With the introduction of the Rogue Engineering OCTANE short shift kit, the choice is now crystal clear!

Rogue Engineering refuses to compromise with "lever substitution" as a method of short shift kit development. Rather than using actual test vehicles for their products, some companies actually dig through OEM factory parts diagrams to determine which factory levers can be substituted with others. This "lever substitution" method of introducing product is unacceptable. These shift kits have been developed and perfected through years of experience in proven short shifter technology, by Co-Founder, Ben Liaw. As longtime BMW enthusiasts know, Ben was single-handedly responsible for introducing and developing the idea of affordable, BMW factory-like, short shift kits for late model BMWs (BL/SS for those young enough to remember!). 

Rogue Engineering idea of a short shift kit is not substituting levers in place of factory ones just because "they fit". Throughout the 80s until recently, BMW was notorious for using only a few specific shifter levers for their manual transmission vehicles. For other companies, making just a few "replacement levers" and offering them in place of those factory part numbers was an easy way of calling it a short shift kit. Unfortunately, for those companies, BMW started using many different part numbers making it more difficult to just "swap in a lever".

Rogue Engineering only develops it's short shift kit with test vehicles in their facility, testing numerous prototypes, offering others to test it before settling on its final design. They feel that this old school, real world testing is the best way when modifying OEM ergonomic, sensory-based controls.

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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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ACT - Corporate Logo
T#:29002055
Part#: 601170
In Stock at Vendor
$ 830.00 USD
Free Shipping on orders $49 and up

The ACT Streetlite flywheel offers the following benefits:

Noticeably improved engine response and acceleration: Experience a significant boost in engine performance and acceleration with this component. OE to mild gear rattle: Expect only minimal gear rattle, from Original Equipment (OE) standards to a mild level, ensuring a smoother drive. Heat-treated forging for strength and toughness: Crafted using heat-treated forging, this part guarantees enhanced strength and durability. Induction-hardened ring gears for maximum life: The ring gears undergo induction hardening, providing maximum lifespan and reliability. One-piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc: The one-piece design reduces potential failure points and ensures uniform and efficient heat transfer from the clutch disc, preventing issues like warped inserts or loose ring gears. Recommended for street and race use: This component is ideal for both everyday street driving and competitive racing environments.

Forged, CNC machined, and dynamically computer balanced for smooth high RPM reliability: Expertly forged, CNC machined, and dynamically balanced via computer to ensure smooth and reliable performance at high RPMs.

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GSP North America - Corporate Logo
T#:389683
Part#: 274125
Ships in 2 Business Days
$ 72.99 USD
Free Shipping on orders $49 and up

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

 

This item fits the following BMWs: 

1992-1998 E36 BMW 318i 318ic 318is 318ti 323is 323ic 325i 325ic 325is 328i 328ic 328is M3 M3 Convertible 
1999-2005 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci 
3/1991-1995 E34 BMW 525i 530i 535i 540i 
11/1991-1994 E32 BMW 735i 735il 740o 740il 750il 
3/1992-1999 E31 BMW 840ci 850ci 850csi 
1996-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe

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GSP North America - Corporate Logo
T#:389675
Part#: 274210
Ships in 2 Business Days
$ 105.99 USD
Free Shipping
$ 105.99 USD
Free Shipping

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

 

This item fits the following BMWs: 

E39 BMW 525i 528i 530i 

E60 BMW 525i 525xi 528i 528i xDrive 530i 530xi 535i 535xi 545i 550i 

E63 BMW 645Ci 650i

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GSP North America - Corporate Logo
T#:389682
Part#: 274094
Ships in 2 Business Days
$ 62.99 USD
Free Shipping on orders $49 and up

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

 

This item fits the following BMWs: 

E30 BMW M3

E28 BMW 524td 528e 533i 535i 535is M5

E24 BMW 633CSi 635CSi M6

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