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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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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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DKM Stage 3 Performance Twin Disc Clutch Kit w/ 8-Bolt Single Mass Fl...
For vehicles with a production date up to 01/2009
DKM - Corporate Logo
T#:583963
Part#: MS-006-075
In Stock
$ 1,299.99 USD
$ 1,299.99 USD

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 longer clutch life.

Tracking your vehicle is all fun and games until you 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

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DKM - Corporate Logo
T#:393279
Part#: MA-006-005
Ships on Oct 26, 2026
$ 749.99 USD
$ 749.99 USD

Looking to upgrade your stock clutch to something a little more beefy?  The performance clutch kits from DKM are a great option to help get power to the wheels without breaking the bank. Working with Competition Clutch, DKM clutch discs and plates are constructed using quality materials to obtain greater strength and heat tolerance than OE clutches, helping to prevent wear and tear while still giving you increased toque capacity for quicker shifts and more power management.

Stage 1 Kits are best for moderately modified vehicles that want to add a single mass flywheel for quicker revs and a sportier engagement, without adversely affecting the clutch pedal's feel. *This is a 10 Spline clutch kit.*

This Stage 1 performance clutch kit includes the following items:

  • Pressure Plate
  • Sprung Organic Disc
  • Iron Single Mass Flywheel
  • Pilot Bearing/Bushing and Throw-out Bearing
  • Alignment Tool

     

**For vehicles with 5-speed transmission only.

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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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Vargas Turbo Technologies - Corporate Logo
T#:26404885
Part#: VTT-X3M-REAR-IN1
In Stock
$ 139.99 USD
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$ 139.99 USD
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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
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$ 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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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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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
Free Shipping
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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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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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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Vargas Turbo Technologies - Corporate Logo
T#:19593973
Part#: VTT-DCT-PAN
Ships in 10 Business Days
Starting at $ 523.99 USD
Free Shipping on orders $49 and up
Starting at $ 523.99 USD
Free Shipping on orders $49 and up
Product Features: Billet construction using 6061-T6 aluminum for long life, and added strength 80% or Almost DOUBLE the factory fluid capacity at 2000ML compared to 1150ML Machined fins for improved cooling Rare Erath magnet built in to pull metal from the fluid US-Made Viton Gasket -6 ORB drain plug for easy service VTT is Proud to offer the Billet Aluminum DCT Transmission pan. This pan is an upgrade from the factory equipped plastic pan, to a 6061-T6 aluminum anodized pan in a variety of colors. This DCT pan increases fluid capacity by 80%, almost DOUBLE the stock pan. This pan utilizes a US-made reusable Viton Gasket, a rare earth magnet built in to pull metal from the fluid, machined external fins to help aid in cooling, and a -6 ORB drain plug.
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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
Free Shipping
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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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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JB Racing - Corporate Logo
T#:3474
Part#: 520-190-240
Ships in 2 Business Days
$ 672.00 USD
Free Shipping
$ 672.00 USD
Free Shipping
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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JB Racing - Corporate Logo
T#:3768
Part#: 520-050-228
Ships in 4 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#: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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Burger Motorsports - Corporate Logo
T#:1316771
Part#: E9XDIFFBRACE-LG
Ships in 1 Business Day
$ 99.00 USD
Free Shipping
$ 99.00 USD
Free Shipping

Burger Motorsports - Corporate Logo
T#:1316770
Part#: E9XDIFFBRACE-SM
Back Ordered
$ 99.00 USD
Free Shipping
$ 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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JB Racing - Corporate Logo
T#:3647
Part#: 520-110-215
Ships in 2 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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Burger Motorsports - Corporate Logo
T#:49822560
Part#: BMSDSBBG
Ships on Aug 31, 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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JB Racing - Corporate Logo
T#:3772
Part#: 520-090-240
Ships in 8 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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DKM - Corporate Logo
T#:17970622
Part#: MB-006-005
In Stock
$ 999.99 USD
$ 999.99 USD
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. For aggressive street use and moderate track use, the MB Clutch Kit is a performance clutch kit that upgrades you to a single Single Mass Flywheel and provides up to 80% increase in torque capacity over the MA series clutch kits. Allowing for quicker revs, this Kit will give your car a little pep while retaining factory-like pedal feel. Kit Contents: Pressure Plate Sprung Organic Disc Iron Single Mass Flywheel Pilot Bearing/Bushing and Throw-out Bearing (when applicable) Alignment Tool For vehicles with 5-speed transmission only. Select your vehicle for additional fitment information. **Due to the nature of lightened single-mass flywheels added "NVH" or "chatter" will or may occur during operation. Accompanying modifications can also increase the amount of "NVH" or "chatter" in the drivetrain. Please contact our sales team with any questions.**
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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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Vargas Turbo Technologies - Corporate Logo
T#:26404870
Part#: VTT-XFER-CASE-BU
Ships in 10 Business Days
$ 137.99 USD
Free Shipping
$ 137.99 USD
Free Shipping
Soft bushings are the enemy of launching hard, and keeping your drivetrain together. The BMW Transfer Case bushings are notoriously soft, and that is the opposite of what you want when launching a car hard. You can replace the bushing with a solid one, but this is time-consuming usually requires lowering or removing the transfer case, and results in a lot of added NVH. The best path is simply to reduce the amount of flex of the factory bushing so you keep the nice manners when cruising around town, and at idle, but when its time to the launch the transfer case cannot move as it could without the insert. These come as a set of two with 2 bolts to keep them in place. Install time once you get to them is about 2-3 minutes. Could not be easier. Put some lube on them, push them in, and tighten the screws. These are a MUST for high-power G8X, and F9X X3/X4M Builds. All platforms they fit are below. Features: 6061- T6 aluminum construction Easy to install Fully reversible Do not add NVH
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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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JB Racing - Corporate Logo
T#:3770
Part#: 520-080-240
Ships in 8 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).

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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Vargas Turbo Technologies - Corporate Logo
T#:26404887
Part#: VTT-X3M-FR-INS
Back Ordered
$ 104.99 USD
Free Shipping
$ 104.99 USD
Free Shipping
Looking to fix the diff bolt issue on your F9X X3/4M? VTT has taken a 3 pronged approach by offering a triple solution, one part of the solution is the front diff bushing inserts. These are pressed into the factory bushing, and fill the voids in the bushing. This keeps the stock bushing ride compliance but removes any unwanted movement. These are sold as a set Kit includes: Two Billet Bushing inserts Two 46mm Hardened Steel Washers
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ACT - Corporate Logo
T#:567293
Part#: BM9-XTSS
In Stock at Vendor
$ 949.00 USD
Free Shipping
$ 949.00 USD
Free Shipping
### **BM9-XTSS Clutch Kit – Engineered for Peak Performance** The **BM9-XTSS Clutch Kit** is designed for enthusiasts who demand maximum performance and durability. Featuring an **ACT Xtreme pressure plate**, this kit delivers **higher clamp load, reduced deflection, and extended clutch life**—ideal for spirited street driving and track use. Each diaphragm undergoes a **four-stage heat-treatment process**, ensuring superior strength and longevity. **Precision cover stampings** enhance rigidity, providing a significant upgrade over stock components. Paired with **ACT’s Performance Street Disc**, this kit utilizes **steel-backed organic friction material** with **high copper content** for **better heat dissipation and burst strength**. Its **reduced marcel design** allows for **quicker, smoother shifts**, perfectly complementing the Xtreme pressure plate. Expect **quiet operation, enhanced durability, and long-term reliability**, making it a top choice for performance-driven drivers. ### **Key Features:** - **Pedal Feel:** Moderate to heavy effort, smooth engagement, and minimal gear rattle. - **Extended Lifespan:** ACT’s exclusive diaphragm design ensures longer-lasting friction material. - **Precision Engineering:** Optimized for **heat resistance, fade reduction, and maximum durability**. Upgrade your drivetrain with confidence—the **ACT BM9-XTSS Clutch Kit** is built to handle the pressure. 🚗💨
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ACT - Corporate Logo
T#:567303
Part#: 601010
In Stock at Vendor
$ 748.00 USD
Free Shipping
$ 748.00 USD
Free Shipping
This Streetlite flywheel is considerably lighter than stock and is the most durable flywheel offering from ACT. This is preferred for street or drag racing. ACT flywheels are serviceable and can be resurfaced with no need to purchase additional parts. Noticeably improved engine response and acceleration, OE to mild gear rattle LifeHeat-treated forging for strength and toughness, induction-hardened ring gears for maximum life One-piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc. No more warped inserts or loose ring gears CNC machined and dynamically computer balanced for smooth high RPM reliability
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JB Racing - Corporate Logo
T#:16606
Part#: 520-160-240
Ships in 8 Business Days
$ 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 = 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
Free Shipping
$ 1,299.99 USD
Free Shipping
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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OS Giken - Corporate Logo
T#:200230
Part#: MN024-HA
In Stock
$ 1,650.00 USD
Free Shipping
$ 1,650.00 USD
Free Shipping
If your MINI is only for competition use - autocross, time trial, or racing - this OS Giken LSD may be a better option than the standard 1.5-way unit. This race-spec LSD was developed over several seasons of competitive autocross. It uses a new high pressure ring for quicker response time and faster lockup. This makes it ideal for quick transitions and rapid on/off throttle motions typically encountered on the track. It's a one-way lockup so the car stays predictable under braking and gives the driver more feedback. For street use we prefer the normal 1.5-way setup because it's more progressive during lockup.

The biggest shortcoming of any MINI is not the lack of power - it's being able to put all of its useable power to the ground! The Cooper S is basically a one-wheel drive car and sending 200+ hp through that one tire does not live up to its full potential. A limited-slip differential is essential to any highly-tuned FWD car. The OS Giken Super-Lock is one of the most advanced clutch-type differentials on the market, and a favorite of autocrossers and road racers. The OS LSD for the MINI features ten clutch discs for a smooth and progressive lockup. By putting all of your available power to the ground you're at an instant advantage over the stock open-type differential. You'll be able to power through corners and on rough surfaces instead of uselessly spinning a wheel. Understeer is reduced by giving more bite to the tire that has the most traction. With an LSD in your MINI Cooper S you'll wonder why it wasn't first on your list to begin with (or why MINI/BMW left it out in the first place...).

The MNI OS Giken LSD uses a special 80W250 fluid that must be purchased separately.

This item fits the following BMWs:
2002-2006 R53 MINI MINI Cooper S (6MT manual transmission only)
2007-2013 R56 MINI MINI Cooper S (6MT manual transmission only)
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Advanced Clutch Technology Xtreme Sprung Street Performance Clutch Ki...
Must be used with ACT or Turner Lightweight flywheel
ACT - Corporate Logo
T#:638329
Part#: BM14-XTSS
In Stock
$ 927.00 USD
Free Shipping
$ 927.00 USD
Free Shipping

Advanced Clutch Technology (ACT) designs, engineers and develops products by leveraging decades of track and performance street experience. Advanced CAD, FEA simulation, and CAM tools help ensure highly optimized performance, reliability, and repeatability. These key advantages are produced by combining the best engineering and design methodologies with the latest in materials and manufacturing techniques.

ACT clutch kits stand unequaled in terms of consistent pedal feel, high torque capacity, long wear life and durability. In-house manufacturing is critical in tuning components specifically to each individual application while maintaining the predictable ACT pedal feel across the entire catalog.

This clutch kit features an Xtreme pressure plate, a Performance Street sprung clutch disc, and an XACT Streetlite Flywheel.

Their Xtreme pressure plate offers a 50-120% clamp load increase, moderate to heavy pedal feel, and is recommended for high performance street and racing applications. All diaphragms went through a four stage heating process for increased strength and unparalleled performance.

Next in this kit is the Performance Street clutch disc. This is the most popular sprung clutch disc and features high quality organic friction material with a high copper content for improved heat transfer and a steel backed lining for increased strength in burst load circumstances. This organic clutch disc has a significantly higher torque capacity than a stock disc but still retains a long life span and operates quietly and reliably.

 

Clutch Kit Specs:

  • Torque Rating: 520 ft/lbs
  • 68% torque capacity increase over stock!
  • Type of Disc: Street
  • 26-count spline
  • Spline Size: 1-3/8" inch
  • Disc Weight: 3.5 lbs
  • Pressure Plate Weight: 10.7 lbs
  • 1 year Warranty from retail purchase date!
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Packaged by Turner - Corporate Logo
T#:588741
Part#: PBTSRKF8XKT
In Stock
Sale - Save 18% $ 324.06

This product was last offered at the strikethrough price on
05-03-2026

$ 266.45 USD
Free Shipping
Sale - Save 18%
$ 324.06

This product was last offered at the strikethrough price on
05-03-2026

$ 266.45 USD
Free Shipping
Tired of dealing with excess shifter slop and a mushy shifter? The Turner Shifter Rebuild & Upgrade Kits will restore your shifter's crisp feel and eliminate excessive movement that develops over time with wear. Included in this kit are all the common wear components and upgraded bushings that will give you a tighter shifting feel than traditional rubber bushings and will resist wear significantly longer. This kit is perfect to restore your driving pleasure and will be the last shifter rebuild you will ever need! See the included components under Kit Contents below.
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DKM Stage 3 Performance Twin Disc Clutch Kit w/ 6-Bolt Single Mass Fl...
For vehicles with a production date from 02/2009-2010
DKM - Corporate Logo
T#:583964
Part#: MS-006-074
Special Order: No Guaranteed ETA
$ 1,299.99 USD
$ 1,299.99 USD

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
Rated for upwards of 660 ft/lbs of torque

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DKM - Corporate Logo
T#:393280
Part#: MA-006-054
Ships on Oct 23, 2026
$ 749.99 USD
$ 749.99 USD

Looking to upgrade your stock clutch to something a little more beefy?  The performance clutch kits from DKM are a great option to help get power to the wheels without breaking the bank. Working with Competition Clutch, DKM clutch discs and plates are constructed using quality materials to obtain greater strength and heat tolerance than OE clutches, helping to prevent wear and tear while still giving you increased toque capacity for quicker shifts and more power management.

Stage 1 Kits are best for moderately modified vehicles that want to add a single mass flywheel for quicker revs and a sportier engagement, without adversely affecting the clutch pedal's feel.

This Stage 1 performance clutch kit includes the following items:

  • Pressure Plate
  • Sprung Organic Disc
  • Iron Single Mass Flywheel
  • Pilot Bearing/Bushing and Throw-out Bearing (when applicable)
  • Alignment Tool


Fits the Following Vehicles:
2000-2006 E46 BMW M3 3.2L

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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
Free Shipping
$ 714.00

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

$ 652.99 USD
Limited Qty Sale
Free Shipping

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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ACT - Corporate Logo
T#:26638199
Part#: 3000801
In Stock at Vendor
$ 161.00 USD
Free Shipping on orders $49 and up
The 3000801 represents a top-tier performance street disc and stands out as one of the most sought-after options available. Crafted with premium organic materials boasting a high copper content, it ensures superior heat transfer capabilities. These performance street discs facilitate swift shifting and seamless engagement, delivering a satisfying driving experience. Engineered with a reduced marcel, they offer accelerated shift action, perfectly complementing ACT pressure plates. ACT spring-centered assemblies incorporate bushings and cone springs akin to factory clutch discs, introducing frictional dampening that enhances clutch longevity and minimizes noise. Experience quiet operation alongside heightened durability and reliability with this exceptional street disc.
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JB Racing - Corporate Logo
T#:3762
Part#: 520-100-228
In Stock
$ 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 = 16.5
JB Flywheel Weight = 8lbs

This item fits the following BMWs:
1968-1973 2002 BMW 2002 2002tii
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ACT - Corporate Logo
T#:31390578
Part#: 601011
Ships in 6 Business Days
$ 694.00 USD
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BMW E36 M3 Z3 XACT Flywheel Streetlite is a high-performance upgrade designed to enhance engine response and acceleration. This Streetlite flywheel is significantly lighter than the stock flywheel, offering superior durability and strength. Crafted from Chromoly Steel, it provides excellent heat tolerance and rigidity, making it ideal for both street and drag racing applications.

  • Improved Performance: Noticeably enhances engine response and acceleration with minimal gear rattle.
  • Durability: Heat-treated forging ensures strength and toughness, while induction-hardened ring gears extend lifespan.
  • Quality Construction: One-piece design prevents failure, ensuring uniform heat transfer and preventing issues like warped inserts or loose ring gears.
  • Recommended Use: Suitable for both street and race applications.
  • ACT Advantage: Forged, CNC machined, and dynamically balanced for reliable high RPM performance.

Specifications:

  • Product Weight: 15.2 lbs
  • Material: Chromoly Steel
  • Friction Surface Diameter: 9.4 inches (240 mm)
  • Flywheel Type: Streetlite
  • Tooth Quantity: 113
  • Warranty: 12 Months
  • SFI Rating: 1.1
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Vargas Turbo Technologies - Corporate Logo
T#:597677
Part#: VTT-INSERT-2
Ships in 10 Business Days
$ 178.99 USD
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$ 178.99 USD
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Instead of completely replacing the mount, simply make a billet aluminum insert for them. This leaves the feel of the factory mount in place but stiffens them up quite a bit removing unwanted engine movement without rattling your teeth out or emptying your wallet.
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BMW E60 E9X XACT Flywheel Streetlite
For vehicles with a 8 bolt flywheel and build date of 01/2009 or earlier
ACT - Corporate Logo
T#:637014
Part#: 601180
In Stock at Vendor
$ 944.00 USD
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$ 944.00 USD
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BMW E60 E9X XACT Flywheel Streetlite is an advanced performance flywheel engineered to offer substantial improvements over stock components. This lightweight flywheel is designed for durability and enhanced performance, making it an excellent choice for both street driving and drag racing.

  • Lightweight Construction: Significantly lighter than the stock flywheel, reducing rotational mass for improved engine response and acceleration.
  • Durable Design: Crafted for maximum strength, lower inertia, and excellent heat tolerance, ensuring long-lasting performance.
  • Versatile Use: Ideal for street or drag racing applications, providing reliable performance across various driving conditions.
  • Serviceable: Can be resurfaced, eliminating the need for additional parts and extending the lifespan of the flywheel.
  • Included Hardware: Comes with flywheel bolts (M12-1.5 X 30mm) for convenient installation.

Upgrade your BMW with the BMW E60 E9X XACT Flywheel Streetlite for enhanced performance and durability.

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ACT - Corporate Logo
T#:14221793
Part#: BM17-HDR6
Ships in 2 Business Days
$ 820.00 USD
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BM13-HDR6 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's 6-pad spring-centered race disc features a spring-center to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 6-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 6-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.
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JB Racing - Corporate Logo
T#:3763
Part#: 520-070-228
Ships in 5 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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OS Giken - Corporate Logo
T#:2209
Part#: BM533-BF6EA
Ships in 2 Business Days
$ 999.99 USD
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$ 999.99 USD
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This kit includes parts needed to overhaul the OS Giken E90/E92 M3 Grand Am legal clutch kit, including clutch discs (2), center plates, and cover bolts (all). As used in the Grand Am KONI Challenge GS class V8 M3s, including both Turner Motorsport E92 M3 race cars.
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Vargas Turbo Technologies - Corporate Logo
T#:25739322
Part#: VTT-BTCBI
Ships in 10 Business Days
$ 136.99 USD
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$ 136.99 USD
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XACT Flywheel Streetlite
For production vehicles with a 6 bolt flywheel and build date from 01/2009
ACT - Corporate Logo
T#:7828840
Part#: 601030
Ships in 6 Business Days
$ 968.00 USD
Free Shipping on orders $49 and up
Note: Single mass flywheel conversion. For 6-bolt crankshaft. Can be used with both factory clutch kit and ACT clutch kits. Gear rattle is expected 601130 is a Streetlite flywheel, which is considerably lighter than stock and is the most durable flywheel offering from ACT. Materials are properly distributed for maximum strength, lower inertia, good heat tolerance and rigidity. ACT's Streetlite flywheels are preferred for street or drag racing. ACT flywheels are serviceable and can be resurfaced with no need to purchase additional parts. Features: Improved engine response and acceleration Heat-treated forging for strength and toguhness with induction-hardened ring gears for maximum life. One piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc. No more warped inserts or loose ring gears Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability Recommended for street and race use. Gear rattle is expected.
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