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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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Turner Motorsport Shifter Rebuild & Upgrade Kit - F8X M2 M3 M4 (up to...

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

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Qty

Sale - Save 18%

$ 324.06

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

$ 266.45 USD

Add to Wish List

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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E36 M3 SPEC Stage 2+ Performance Clutch Kit

T#:350719

Part#: SB053H

Ships in 8 Business Days

Starting at $ 2,740.23 USD

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Starting at $ 2,740.23 USD

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The SPEC Stage 2 clutch is a premium, no compromises heavy-duty clutch upgrade for the 1996-1999 E36 M3. 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 370 ft-lbs, more than enough for the naturally-aspirated S52 engines. A heavy-duty pressure plate and throw-out bearing complete the package.

The stock clutch in the S52 cars is not a terrible clutch and it is not under-rated (it was the same clutch used in the Euro M3). Our tuned M3 street and race cars have used the stock clutch with over 300hp 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 like our Project E36 M3, 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 with a lightweight aluminum single-mass flywheel.

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 aluminum flywheel. A machined steel flywheel is also an option as a middle ground. 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.

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.

E36 M3 SPEC Clutch Kit contents:
+ carbon-Kevlar clutch disc
+ heavy-duty pressure plate
+ heavy duty throw-out bearing

This item fits the following BMWs:
1996-1999 E36 BMW M3

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Billet Diff Lock Down Kit

T#:21176906

Part#: VTT-A9X-DLD

In Stock

Sale - Save 7% $ 313.99

This product was last offered at the strikethrough price on
05-04-2026

Starting at $ 291.99 USD

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Sale - Save 7%

$ 313.99

This product was last offered at the strikethrough price on
05-04-2026

Starting at $ 291.99 USD

Add to Wish List

VTT noticed a hole in the A9X/Z4 market for a high-quality, lightweight, NVH-friendly, and easy-to-install Diff Lock Down kit to improve diff stability under launching, and hard cornering. Vargas went to work on a very innovative design that 100% positively locks the diff down from movement, while shielding it from adding a ton of NVH, and can be used with the stock diff, and subframe bushings. This design uses existing mounting points on the vehicle, you do NOT have to remove the subframe or the Diff to install. Simply remove 4 diff bolts, drill two holes in the subframe slightly bigger, install two M10 riv-nuts, and install the lockdown, you do not even have to move the exhaust. A typical install can be 15-30 minutes for someone who is experienced. You will need a Riv-nut tool to install the Riv-nuts as one is not included. Features: Lightweight 1.5 lbs for the entire lockdown plate Uses FOUR connection points on the Diff, and two on the subframe for the ultimate in positive diff location, this will stop all diff movement on launch, saving your guibos, etc 100% Billet construction from 6061-T6 aluminum Anodized in 4 colors for corrosion resistance, a long-lasting finish, and good looks The subframe does NOT have to be removed for installation Uses all 12.9 grade hardware Does not add excessive NVH Positively locks down the diff to eliminate all unwanted movement under launches, acceleration, cornering, etc.

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E46 330i SPEC Stage 2+ Performance Clutch Kit

T#:340433

Part#: SB033H

Ships in 8 Business Days

Sale - Save 2% $ 2,866.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 2,809.62 USD

Add to Wish List

Sale - Save 2%

$ 2,866.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 2,809.62 USD

Add to Wish List

The SPEC Stage 2+ clutch is a premium, no compromises heavy-duty clutch upgrade for the 2001-2003 E46 330i/ci (5-speed transmission). It goes beyond the standard Stage 1 upgrade with a higher-capacity clutch disc rated at 545ft-lbs! 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 stock 330 clutch was not designed for performance. It works fine for a daily driver street car with no mods but performance and longevity quickly drop off when adding more power or using the car for aggressive street, autocross, or track use. A lot of our customers also hate the self-adjusting clutch (SAC) mechanism and the clutch delay valve that makes clutch engagement inconsistent and unnatural feeling. It's no wonder that for the Grand-Am Cup touring car races the rules specified an E36 M3 clutch! If you're unhappy with the stock clutch feel or your future plans include additional upgrades that boost torque, then 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 with a lightweight aluminum single-mass flywheel.

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 an aluminum flywheel. A machined steel flywheel is also an option as a middle ground. 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.

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

This item fits the following BMWs:
2001-2003 E46 BMW 330i 330ci 330xi only for 5-speed manual transmission

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