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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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BMS Billet Clutch Delay Valve (CDV) Delete - E8X/E9X
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Burger Motorsports - Corporate Logo
T#:2513299
Part#: BMWCLUTCHVAVLE
In Stock
$ 29.99 USD
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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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SPEC Clutch Super Twin Performance Clutch Kit - w/ Organic Trim - BMW...
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Spec Clutches - Corporate Logo
T#:3457425
Part#: SB55SST
Ships in 10 Business Days
$ 1,899.00 USD
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$ 1,899.00 USD
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SPEC Super Twin multi-disc clutch and flywheel kits are designed for street and track use in vehicles with extreme horsepower and torque (700 to 1500 lbs.-ft.). They offer near-stock drivability, tremendous life expectancy, a no shimming/setup bolt-in installation, and maintenance-free operation. With their all-billet construction, these assemblies are smooth and quiet. Super Twins are constructed with aircraft-grade aluminum and high-carbon billet steel milled to industry-leading .001 in. tolerances for perfect balance and actuation. Friction is provided by dampened, full-faced, carbon-graphite discs. Additional features of SPEC Super Twin multi-disc clutch and flywheel kits: Organic, fiber, and full-metallic versions are also available Flywheel and track-spec hardware are included in each kit *Rebuildable by SPEC or the end-user *Ideal for all types of use, including: street, drag racing, drifting, road racing, time-attack, pulling, and rally
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N54/N55 BMW Automatic Transmission Cooler - 335 W/Thermostat ...
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Burger Motorsports - Corporate Logo
T#:21045476
Part#: BMS-335-TC-WTH
Back Ordered
$ 573.00 USD
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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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SPEC Clutches Twin disc SS-Trim Clutch Kit - E60 M5, E63 E64 M6 SMG ...
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Spec Clutches - Corporate Logo
T#:341298
Part#: SB60SST
Ships in 4 Business Days
$ 1,799.00 USD
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$ 1,799.00 USD
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When adding performance-enhancing modifications to your vehicle, you need a way to get the power to the wheels. The SPEC clutch kit is perfect for preventing premature wear and slippage during heavy acceleration. This kit is designed to hold up to 710 ft. lbs. For vehicles with SMG transmission only
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N54/N55 BMW Automatic Transmission Cooler - E9X 335
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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
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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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Stage 2+ Performance Clutch Kit (for SPEC single-mass flywheel) ...
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Spec Clutches - Corporate Logo
T#:211063
Part#: SB533H-2
In Stock at Vendor
$ 839.00 USD
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$ 839.00 USD
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Tuning your N54/N55 with all of the bolt-on upgrades? Don't allow your clutch or flywheel let you down! The stock clutch is fine for a stock car or just a simple software upgrade. But anything more and it quickly becomes the weak link (especially with drag races or hard launches). The 135i/335i/535i/Z4 35i SPEC Stage 2+ clutch kit is perfect for owners who want a performance clutch that works great with simple bolt-on modifications and will have a minimum of downsides or trade-offs. SPEC has spent considerable time and effort on the 335i models to produce a performance clutch and flywheel package that holds up to track and drag strip demands but is also easy to live with for daily driving. This clutch kit is meant to be used only with a SPEC flywheel. Features: The flywheel has a peak torque rating of 545ft-lbs Limitations of the stock flywheel are eliminated Self-adjusting, like the factory design, and the engagement point can be adjusted Sprung hub clutch to be used with the single-mass flywheel with near-stock levels of noise, vibration, and refinement **Due to the nature of lightened single mass flywheels added "NVH" or "chatter" will or may occur during operation. Accompanying modifications can also increase or decrease the amount of "NVH" or "chatter" in the drivetrain. Please contact our sales team with any questions.**
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Burger Motorsports Differential Support Bracket Brace - F-Chassis BMW...
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Burger Motorsports - Corporate Logo
T#:637547
Part#: BMS-DSBB-F
Ships in 2 Business Days
Starting at $ 129.00 USD
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Starting at $ 129.00 USD
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The BMS differential brace attaches the rear differential to the subframe allowing better launches, less wheel hop, and a more stable feeling rear chassis. Their unique one-piece construction eliminates welding weak points common on similar units. No logos or markings are visible for a stealth OEM appearance.
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F-Chassis B58 SPEC Billet Aluminum Flywheel
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Spec Clutches - Corporate Logo
T#:7036582
Part#: SBB58A-2
Ships in 1-2 days
$ 749.00 USD
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$ 749.00 USD
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These kits feature a non-SAC mechanism pressure plate, which , deviating from the original design, provides a lighter rotating assembly, higher rpm capability and greater clamp load levels. Required for the install is a billet rebuildable flywheel that features a lightweight, low MOI design and infinite rebuildability. The billet aluminum flywheel weighs 14lbs, and billet steel 22 lbs.
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SPEC Billet Aluminum Single Mass Flywheel - E9X 335i, E82/88 135i, E6...
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Spec Clutches - Corporate Logo
T#:387322
Part#: SB53A-2
In Stock
$ 579.00 USD
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$ 579.00 USD
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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration.

Stage 1 Performance Clutch Kit (for SPEC single-mass flywheel) ...
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Spec Clutches - Corporate Logo
T#:397226
Part#: SB531-2
In Stock at Vendor
10% off MSRP $ 759.00

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

$ 683.99 USD
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10% off MSRP
$ 759.00

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

$ 683.99 USD
Free Shipping

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

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

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Spec SMF- STEEL (FOR USE WITH SPEC CLUTCH ONLY) N55
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Spec Clutches - Corporate Logo
T#:597416
Part#: SB55S-2
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$ 599.00 USD
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$ 599.00 USD
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BMW E9X 335i BMS Differential Support Bracket Brace - Small Case ...
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Burger Motorsports - Corporate Logo
T#:1316770
Part#: E9XDIFFBRACE-SM
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$ 99.00 USD
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$ 99.00 USD
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BMW E9X 335i BMS Differential Support Bracket Brace - Small Case

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

Benefits:

  • Enhances differential stability by reducing flex and movement
  • Improves power transfer and handling performance
  • Precision-engineered for a perfect fit and reliable performance
  • Ideal for high-performance driving and track use
  • Extends the lifespan of differential components
  • Made from high-quality materials for durability and strength
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SPEC Single Mass Steel Flywheel - BMW E9X 335 2007-2009 (up to 1/2009...
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Spec Clutches - Corporate Logo
T#:341709
Part#: SB53S-2
In Stock at Vendor
$ 599.00 USD
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$ 599.00 USD
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These kits feature a non-SAC mechanism pressure plate, which , deviating from the original design, provides a lighter rotating assembly, higher rpm capability and greater clamp load levels. Required for the install is a billet rebuildable flywheel that features a lightweight, low MOI design and infinite rebuildability. The billet aluminum flywheel weighs 14lbs, and billet steel 22 lbs.
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Stage 3 Performance Clutch Kit (for SPEC single-mass flywheel) ...
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Spec Clutches - Corporate Logo
T#:394254
Part#: SB533-2
In Stock at Vendor
$ 799.00 USD
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$ 799.00 USD
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The Stage 3+ is for cars making serious levels of boost and torque. If you have upgraded turbos or a single-turbo conversion, or have checked off the list of full bolt-ons, this will be a very capable clutch for you. This clutch is designed to work only with a SPEC single-mass flywheel and avoid the pitfalls of the stock OEM flywheel. The stock dual mass flywheel uses springs and rubber to isolate vibrations from the engine and transmission. However, on high mileage or abused flywheels the rubber can break down and the springs will become weak. A worn dual mass flywheel limits the amount of torque you can put out. It will affect clutch engagement, shifts, and power delivery. In some cases a total flywheel failure can rip apart the flywheel, clutch, and even transmission housing. With the SPEC single-mass flywheel the limitations of the stock flywheel are eliminated. The SPEC flywheel is a single mass design (no internal springs or rubber to fail) and is offered in a steel or aluminum material. The steel will better dampen vibration than the aluminum so it's the better choice for street use. The aluminum will have greater vibration and noise (gearbox rattle) that may not be acceptable for everyone. The clutch in this Stage 3+ kit is a sprung hub design so SPEC has done all they can to minimize the noise and vibration. It's also self-adjusting, like the factory design, and the engagement point can be adjusted. For use with SPEC Billet Flywheel (E-Chassis cars) or (F-Chassis cars)
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Twin Disc Clutch & Flywheel Kit - F10 M5 F06 M6 S63 w/ Manual Transmi...
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Spec Clutches - Corporate Logo
T#:593652
Part#: SBF10M5SST
Ships in 4 Business Days
$ 2,299.00 USD
$ 2,299.00 USD
If your clutch is slipping on your F10 M5 or F06/12/13 M6, it is time to upgrade! Luckily, SPEC clutch offers its very own high-performance clutches that are designed with power in mind. This Super Twin SST clutch and flywheel combo from SPEC is rated for 910ft lbs of torque and is perfect for either street or track use thanks to its IMSA inspired roots. Unlike your typical street and track clutch system, this kit from SPEC is also built with driveability in mind, remaining smooth and easy to use despite its increased torque capacity. Features: High capacity with smooth engagement and low pedal effort Billet construction with serviceable flywheel (the OE is not serviceable) Installs just like the OEM unit, despite all the differences Super Twin SST - Suitable for up to 910 ft-lbs of torque Super Twin ST Trim - Suitable for up to 1125 ft-lbs of torque Organic lining for a faster bed in than metallic units Included: SPEC Super Twin World Billet Steel Flywheel SPEC Super Twin World Clutch
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Spec 12-16 BMW 335i (F30) Stage 2+ Clutch Kit
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Spec Clutches - Corporate Logo
T#:597413
Part#: SB553H-2
In Stock at Vendor
$ 839.00 USD
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$ 839.00 USD
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SPEC Stage 2+ Performance Clutch Kit - E46 M3 6MT
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Spec Clutches - Corporate Logo
T#:340444
Part#: SB663H
Ships in 3 Business Days
Starting at $ 869.00 USD
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Starting at $ 869.00 USD
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The SPEC Stage 2 clutch is a premium, no compromises heavy-duty clutch upgrade for the 2001-2006 E46 M3 (manual transmission). Where the stock clutch is well-known for premature wear when driven hard and the factory dual mass flywheel is a known failure point, the SPEC clutch delivers with an over-engineered, performance-oriented clutch solution. The single carbon-Kevlar clutch is rated at 545 ft-lbs, more than enough for the naturally-aspirated S54 engines. A heavy-duty pressure plate and throw-out bearing complete the package.

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

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

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

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

This item fits the following BMWs:
2001-2006 E46 BMW M3 with 6 speed manual transmission
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BMS Differential Support Bracket Brace - BMW 135i / E9x 335i - Large ...
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Burger Motorsports - Corporate Logo
T#:1316771
Part#: E9XDIFFBRACE-LG
Ships in 2 Business Days
$ 99.00 USD
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$ 99.00 USD
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BMS Differential Support Bracket Brace For G Chassis BMW/Supra ...
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Burger Motorsports - Corporate Logo
T#:49822560
Part#: BMSDSBBG
In Stock
New Item
$ 229,229.00

This product was last offered at the strikethrough price on
01-21-2026

$ 229.00 USD
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$ 229.00 USD
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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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Twin Disc PT-Trim Semi- Metallic Puck Clutch Kit - E82 E9X Z4 ...
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Spec Clutches - Corporate Logo
T#:26538323
Part#: SB53PT-3
Back Ordered
10% off MSRP $ 1,850.00

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

$ 1,665.00 USD
10% off MSRP
$ 1,850.00

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

$ 1,665.00 USD

Upgrade Your BMW with Spec Twin Disc PT-Trim Semi-Metallic Puck Clutch Kit SB53PT-3

Upgrade your BMW 135i / 335i with the Spec Twin Disc PT-Trim Semi-Metallic Puck Clutch Kit SB53PT-3, ideal for models from February 2009 to 2012. This Super Twin Disc Clutch Kit (SB53PT-3) by SPEC® boasts a PT-Trim design and includes a flywheel. Engineered for street and track use, it's suitable for high-horsepower and high-torque vehicles, offering near-stock drivability and long life expectancy. The bolt-in installation requires no shimming/setup and ensures maintenance-free operation. Constructed with aircraft-grade aluminum and high-carbon billet steel, this clutch kit guarantees perfect balance and actuation. Friction is provided by dampened, full-faced carbon graphite discs. Featuring organic, fiber, and full metallic options, it caters to various driving needs. Each kit includes a flywheel and track-spec hardware. SPEC® products are renowned for their quality and durability, providing years of trouble-free service. This clutch kit is designed to enhance your vehicle's performance and reliability.

  • Engineered to enhance vehicle performance
  • Made to stringent quality standards
  • Exceptional durability for long service life
  • Includes flywheel
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Stage 2+ Clutch Kit N62 4.4L / N62 4.8L
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Spec Clutches - Corporate Logo
T#:381004
Part#: SB453H
Ships in 4 Business Days
$ 849.00 USD
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$ 849.00 USD
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Enhance Vehicle Performance with SPEC Clutch Kit

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

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

Key Features:

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

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

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Stage 3+ Performance Clutch Kit (for SPEC single-mass flywheel) ...
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Spec Clutches - Corporate Logo
T#:209171
Part#: SB533F-2
In Stock
$ 979.00 USD
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$ 979.00 USD
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The Stage 3+ is for cars making serious levels of boost and torque. If you have upgraded turbos or a single-turbo conversion, or have checked off the list of full bolt-ons, this will be a very capable clutch for you. This clutch is designed to work only with a SPEC single-mass flywheel and avoid the pitfalls of the stock OEM flywheel. The stock dual mass flywheel uses springs and rubber to isolate vibrations from the engine and transmission. However, on high mileage or abused flywheels the rubber can break down and the springs will become weak. A worn dual mass flywheel limits the amount of torque you can put out. It will affect clutch engagement, shifts, and power delivery. In some cases a total flywheel failure can rip apart the flywheel, clutch, and even transmission housing. With the SPEC single-mass flywheel the limitations of the stock flywheel are eliminated. The SPEC flywheel is a single mass design (no internal springs or rubber to fail) and is offered in a steel or aluminum material. The steel will better dampen vibration than the aluminum so it's the better choice for street use. The aluminum will have greater vibration and noise (gearbox rattle) that may not be acceptable for everyone. The clutch in this Stage 3+ kit is a sprung hub design so SPEC has done all they can to minimize the noise and vibration. It's also self-adjusting, like the factory design, and the engagement point can be adjusted. For use with SPEC Billet Flywheel (E-Chassis cars) or (F-Chassis cars)
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BMW N54 N55 B58 SPEC Stage 2 Performance Clutch Kit (for SPEC single-...
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Spec Clutches - Corporate Logo
T#:341710
Part#: SB532-2
In Stock
$ 790.99 USD
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$ 790.99 USD
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SPEC's Stage 2 clutch features a full faced pure Kevlar disc complete with steel backing. This lining offers outstanding drivability like the Stage 1 kit, with an increased torque capacity and a longer life. The hub is double sprung with built-in spring reliefs for flexibility, along with heat treatment for added strength and durability. This clutch is best served in any situation from daily driven on the street, to drag or autocross racing events.

Kit includes:

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

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Spec Aluminum Single Mass Flywheel - E9X 335 (01/2009+)
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Designed for use with SPEC SB53X-2 clutch kits
Spec Clutches - Corporate Logo
T#:342330
Part#: SB53A-3
Back Ordered
$ 579.00 USD
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$ 579.00 USD
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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration.


E9X Stage 3+ Mini Twin Clutch Kit
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Spec Clutches - Corporate Logo
T#:341291
Part#: SB93SST
Ships in 9 Business Days
$ 1,799.00 USD
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$ 1,799.00 USD
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Ensure optimal performance on the dragstrip or road course with the Spec Mini Twin Clutch Kit for your BMW M3. Stock clutches may falter under high RPM engagement or repeated launches, especially in modified or supercharged BMWs. The Spec Mini Twin clutch kit, featuring a double sprung hub and carbon semi-metallic friction surface, provides a lightweight solution with OEM-like pedal effort. Experience lightning-fast shifting, even at the top of your RPM range, making it ideal for aggressive drag strip launches or extended road course use. The kit includes an alignment tool and bearing for added convenience.

  • Spec Mini Twin Clutch Kit for BMW M3
  • Ideal for dragstrip and road course use
  • Lightweight design for improved performance
  • OEM-like pedal effort
  • Double sprung hub and carbon semi-metallic friction surface
  • Lightning-fast shifting at high RPM
  • Suitable for modified or supercharged BMWs
  • Includes alignment tool and bearing for convenience
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BMS Transmission Oil Cooler - BMW F-Chassis Gen 1 Oil Cooler ...
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Burger Motorsports - Corporate Logo
T#:14915970
Part#: FG1B58TOC
Back Ordered
7% off MSRP $ 699.00

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

$ 649.00 USD
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7% off MSRP
$ 699.00

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

$ 649.00 USD
Free Shipping on orders $49 and up
Everyone knows that high heat is the enemy of your automatic transmission. And that higher power levels generate more transmission fluid heat which will cause a trans slip. Now you can extend the life of your automatic transmission by installing the new Burger Motorsports High Capacity B58 Gen1 Trans Cooler kit. This unique plug-and-play kit replaces your factory coolant to trans fluid heat exchanger with a high-capacity front-mounted air to trans fluid radiator. Includes all mounting hardware, lines, and coolant caps required for installation. Installs within the front bumper behind the driver-side kidney grills 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 B58 Gen1 F chassis automatic car running larger than factory turbos. 165ºF (74ºC) transmission oil cooler Improved Racing thermostat included 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 included: (1) High capacity transmission oil cooler (2) Brackets (1) Billet adapter (2) Coolant plugs (1) Improved Racing 165F Thermostat + fittings (4)-10 AN crimped PTFE/SS/Nylon covered lines (6) M6x1.0x12mm bolts, washers and nuts (1) M6x1.0x20mm bolt Compatible with both RHD and LHD, RWD and AWD, ZF8HP50 and ZF8HP70 Transmissions.
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SPEC Clutches- Twin Disc-ST Trim Clutch Kit - TRACK
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T#:343306
Part#: SB60ST
Ships in 4 Business Days
$ 2,099.00 USD
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$ 2,099.00 USD
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BMW / Supra A90 Stage 4 Performance Clutch Kit (for SPEC single-mass ...
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Spec Clutches - Corporate Logo
T#:568757
Part#: SB534-2
Ships in 4 Business Days
$ 799.00 USD
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Stage 2+ Spec Clutch Kit - R55 / R56 / R57 / R58 / R59
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Spec Clutches - Corporate Logo
T#:23416502
Part#: SB003HS-2
Ships in 4 Business Days
$ 799.00 USD
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Upgrade your Mini's performance with a multi-friction clutch disc featuring carbon semi-metallic and Kevlar configurations. The 2+ clutch offers enhanced torque capacity, approximately 15-20% higher than stage 2, while maintaining stage 2-like drivability and engagement quality. Available in Sprung or Rigid hubs, application-dependent, these hubs incorporate heat-treated components for durability. Ideal for street, drag, autocross, road racing, pulling, rallye, and drift applications.
  • Multi-friction disc with carbon semi-metallic and Kevlar configurations
  • 15-20% higher torque capacity than stage 2 clutches
  • Maintains stage 2-like drivability and engagement quality
  • Available in Sprung or Rigid hubs for application flexibility
  • Heat-treated components ensure strength and durability
  • Suitable for various driving applications: street, drag, autocross, road racing, pulling, rallye, and drift
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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MINI R52 R53 Lightweight Aluminum Flywheel (12lbs)
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Spec Clutches - Corporate Logo
T#:31191877
Part#: SB09A
Ships in 4 Business Days
$ 499.00 USD
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MINI R52 R53 Lightweight Aluminum Flywheel (12lbs) enhances the performance of the MINI with its precision engineering and lightweight design. This flywheel, manufactured by SPEC, is tailored for specific driving environments, making it ideal for both daily driving and high-performance applications.

  • Lightweight Design: Weighs approximately 12 lbs, reducing rotational mass for quicker engine response and improved acceleration.
  • High-Quality Construction: Made from premium steel and aluminum, ensuring durability and a flat seating surface for the clutch.
  • Precision Engineering: Manufactured to a .001 machine tolerance for smooth rotational qualities and perfect balance.
  • Performance Upgrade: Essential for converting from OE dual mass to single mass when used with SPEC Design clutch kits.
  • Versatile Application: Suitable for various driving habits and racing or high-performance setups.
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SPEC Stage 2+ Performance Clutch Kit (for SPEC single-mass flywheel) ...
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Spec Clutches - Corporate Logo
T#:340442
Part#: SB533H-2
In Stock at Vendor
Starting at $ 1,438.00 USD
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Starting at $ 1,438.00 USD
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Tuning your N54/N55 with all of the bolt-on upgrades? Don't allow your clutch or flywheel let you down! The stock clutch is fine for a stock car or just a simple software upgrade. But anything more and it quickly becomes the weak link (especially with drag races or hard launches). The 135i/335i/535i/Z4 35i SPEC Stage 2+ clutch kit is perfect for owners who want a performance clutch that works great with simple bolt-on modifications and will have a minimum of downsides or trade-offs. SPEC has spent considerable time and effort on the 335i models to produce a performance clutch and flywheel package that holds up to track and drag strip demands but is also easy to live with for daily driving. This clutch kit is meant to be used only with a SPEC flywheel.

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

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

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

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

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

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

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

This item fits the following BMWs:
2008-2013 E82 BMW 135i 135is 1M Coupe
2007-2013 E90 BMW 335i 335xi 335i xDrive - Sedan
2007-2013 E92 BMW 335i 335is 335xi 335i xDrive - Coupe
2007-2013 E93 BMW 335i 335is - Convertible
2008-2010 E60 BMW 535i 535xi 535i xDrive
2009+ E89 Z4 Z4 35i Z4 35is (from February 2009 production date)
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Spec Clutches Stage 2 Clutch Kit - E9X 335i, E82/88 135i, E60 535i ...
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Spec Clutches - Corporate Logo
T#:384447
Part#: SB532
Ships in 4 Business Days
$ 889.00 USD
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$ 889.00 USD
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SPEC's Stage 2 clutch features a full faced pure Kevlar disc complete with steel backing. This lining offers outstanding driveability like the Stage 1 kit, with an increased torque capacity and a longer life. The hub is double sprung with built-in spring reliefs for flexibility, along with a heat treatment for added strength and durability. This clutch is best served in any situation from daily driven on the street, to drag or autocross racing events.

Kit includes:

Pressure plate
Clutch disc
Pilot bearing
Clutch Release bearing
Clutch Alignment tool
Clutch fork
Designed to be used with a stock dual mass flywheel or any billet single mass designed for a factory style clutch.

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SPEC Billet Steel Flywheel (F-Chassis B58)
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Spec Clutches - Corporate Logo
T#:7036583
Part#: SBB58S-2
Ships in 4 Business Days
$ 748.00 USD
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$ 748.00 USD
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These kits feature a non-SAC mechanism pressure plate, which , deviating from the original design, provides a lighter rotating assembly, higher rpm capability and greater clamp load levels. Required for the install is a billet rebuildable flywheel that features a lightweight, low MOI design and infinite rebuildability. The billet aluminum flywheel weighs 14lbs, and billet steel 22 lbs.
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Lightweight Aluminum Flywheel (12lbs) N14 1.6L Engine
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Spec Clutches - Corporate Logo
T#:26404876
Part#: SB09A-2
Ships in 4 Business Days
$ 529.00 USD
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SPEC billet flywheels offer precise engineering tailored to specific driving environments, ensuring optimal performance for each vehicle. Made from high-quality steel and aluminum, SPEC flywheels boast a .001 machine tolerance, guaranteeing a flat seating surface for the clutch and smooth rotational qualities. These flywheels are essential for converting OE Dual Mass to Single Mass for compatibility with Spec Design clutch Kits.

Benefits:

  • Precision engineering for specific driving environments
  • Manufactured from high-quality steel and aluminum
  • Flat seating surface for the clutch ensures smooth operation
  • Compatible with Spec Design clutch Kits
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Spec Clutch And Flywheel
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Spec Clutches - Corporate Logo
T#:583816
Part#: SB801KT
Ships in 4 Business Days
$ 1,268.00 USD
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$ 1,268.00 USD
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SPEC Stage 1 Performance Clutch Kit (for SPEC single-mass flywheel) ...
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Spec Clutches - Corporate Logo
T#:35525717
Part#: SB551-2
Back Ordered
$ 699.00 USD
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$ 699.00 USD
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SPEC Aluminum Flywheel (SMF) (FOR USE WITH SPEC CLUTCH ONLY) 135 N55 ...
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T#:597417
Part#: SB55A-2
Ships in 4 Business Days
$ 637.00 USD
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E46 330i SPEC Stage 1 Performance Clutch Kit
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Spec Clutches - Corporate Logo
T#:340432
Part#: SB031
Ships in 3 Business Days
Starting at $ 749.00 USD
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Starting at $ 749.00 USD
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The SPEC Stage 1 clutch is a premium, no compromises SPORT clutch upgrade for the 2001-2003 E46 330i/ci (5-speed transmission). Where the stock clutch is well-known for premature wear when driven hard and the factory dual mass flywheel is a known failure point, the SPEC clutch delivers with an over-engineered, performance-oriented clutch solution. The single carbon-Kevlar clutch is rated at 430 ft-lbs, more than enough for a naturally-aspirated M54 engine. A heavy-duty pressure plate and throw-out bearing complete the package.

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 1 clutch consists of a hybrid carbon-Kevlar and organic 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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E60 M5 SMG, E63 M6 SPEC Twin-Disk Performance Clutch Kit
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Spec Clutches - Corporate Logo
T#:340443
Part#: SB60SST
Ships in 3 Business Days
Starting at $ 1,799.00 USD
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Starting at $ 1,799.00 USD
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The Super Street Twin disc clutch gives you a worry-free twin-disc clutch upgrade for the E60 M5 and E63 M6. This flywheel and clutch kit features twin carbon fiber/organic discs with a steel flywheel rated at over 900 ft-lbs of torque. Even with increased capability this clutch drives and functions almost the same as a stock clutch but with a more solid feel and better engagement. Where the stock clutch can feel weak and soft the SPEC clutch feels stronger and more capable. The SPEC flywheel included in this kit is also a superior alternative to the pricey factory dual-mass flywheel, which are known to wear out. If clutch or flywheel woes are keeping you from getting the most from your V10 this is the clutch you should be using.

The SPEC clutch upgrade for the M5/M6 gives you a true twin disc clutch setup in the SMG models. Twin disc clutches have been common in racing events for years. Our World Challenge Touring Cars were among the first to use two or three disc racing clutches in BMW applications. We found many advantages to a multi-disc setup over a single disc - greater torque capacity, less heat build-up, and longer clutch life thanks to more surface area, and less weight in the clutch discs. One of the goals from SPEC was to keep clutch operation and noise as close to stock levels as possible. They use a special blend of organic, carbon, Kevlar, and metallic materials for a strong and durable clutch that is also user friendly on the street. This kit is supplied with a billet steel flywheel that better minimizes vibrations and clutch chatter than aluminum. The SPEC flywheel is also preferred over the factory dual-mass part which can wear out over time and need replacement anyway. Clutch rebuild parts are also available to minimize consumable costs and keep your car ready to use.

More aggressive clutch materials are available. The kit comes with a carbon fiber/Kevlar/organic material that is best-suited for street use and will offer the most user-friendly feel and engagement. For more performance capability you can opt for a carbon-graphite material but it will not be as user-friendly on the street. The carbon-graphite offers tremendous torque limits (1,125 ft-lbs) but the material will result in a more abrupt clutch engagement with less usable slippage.

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

E60 M5 E63 M6 SPEC Clutch Kit contents:
+ billet steel flywheel
+ twin-disc clutch plates with friction surface
+ heavy-duty pressure plate
+ heavy duty throw-out bearing

This item fits the following BMWs with SMG transmission:
2006-2010 E60 BMW M5
2006-2010 E63 BMW M6
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Spec Stage 3 Clutch - E30 / E36
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Spec Clutches - Corporate Logo
T#:22591970
Part#: SB113
Ships in 4 Business Days
$ 539.00 USD
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The Spec Stage 3 clutch kit stands out with its carbon semi-metallic 6-puck sprung hub disc, celebrated for exceptional drivability, extended longevity, and remarkable torque capacity. This kit is tailor-made for street and race cars that demand a forceful yet street-friendly engagement and substantial torque capability. For those acquainted with "puck" style pressure plates, the Spec kit aims to deliver racing-style performance while ensuring a smoother street experience.

The double-sprung hub with spring cover reliefs enhances flexibility, reducing harsh shifts. Additionally, all kit components undergo heat treatment for heightened durability, ensuring optimal performance even in high-pressure, high-temperature scenarios.

Key Features:

  • High clamp pressure plate
  • Carbon-Graphite friction material
  • High-torque sprung hub and disc assembly
  • Includes bearing and tool kit
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Spec Super Twin Clutch Kit - BMW E39 M5
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T#:1120840
Part#: SB63SST
Ships in 4 Business Days
$ 1,589.00 USD
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$ 1,589.00 USD
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The SPEC Super Twin is for street and track use in cars with extreme horsepower and torque (700-1500 ft-lbs tq). The Super Twin offers near-stock drivability, tremendous life expectancy, a no shimming/setup bolt-in installation and maintenance-free operation. With all billet construction, these units are smooth and quiet. The units are rebuildable by SPEC or the end user and replacement components or rebuild services are always available. The super twin is constructed with aircraft-grade aluminum and high carbon billet steel milled to an industry-leading .001 inch for perfect balance and actuation. Friction is provided by dampened, full-faced carbon graphite discs. Organic, fiber, and full metallic options are available. Flywheel and track-spec hardware are included in each kit. Types of driving: street, drag, drift, road racing, time attack, pulling, and Rallye.
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Spec Clutches Stage 3+ Clutch Kit - BMW E9X E82/88 335i/135i ...
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Spec Clutches - Corporate Logo
T#:384613
Part#: SB533F
Ships in 4 Business Days
$ 999.00 USD
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$ 999.00 USD
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Upgrade your BMW's performance with this stage 3+ clutch kit, boasting a carbon semi-metallic full-faced material for unmatched life, friction coefficient, and drivability. The double-sprung hub enhances flexibility with spring cover relieves, while heat-treated components in both hubs ensure strength and durability. Ideal for various driving scenarios, including street, drag, drift, autocross, road racing, pulling, rallye, and more.

  • Carbon semi-metallic material for extended life and optimal friction
  • Double-sprung hub with spring cover relieves for enhanced flexibility
  • Heat-treated components in both hubs for increased strength and durability
  • Suitable for street, drag, drift, autocross, road racing, pulling, rallye, and more
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SPEC Stage 2+ Performance Clutch Kit - E46 M3 SMG
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Spec Clutches - Corporate Logo
T#:340445
Part#: SB663HSMG
Ships in 3 Business Days
Starting at $ 879.00 USD
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Starting at $ 879.00 USD
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The SPEC Stage 2 clutch is a premium, no compromises heavy-duty clutch upgrade for the 2001-2006 E46 M3 (SMG transmission). Where the stock clutch is well-known for premature wear when driven hard and the factory dual mass flywheel is a known failure point, the SPEC clutch delivers with an over-engineered, performance-oriented clutch solution. The single carbon-Kevlar clutch is rated at 545 ft-lbs, more than enough for the naturally-aspirated S54 engines. A heavy-duty pressure plate and throw-out bearing complete the package.

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

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

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

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

This item fits the following BMWs:
2001-2006 E46 BMW M3 with SMG
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Twin Disc SS-Trim Clutch Kit
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For vehicles with manual transmission
Spec Clutches - Corporate Logo
T#:380808
Part#: SB60SST2
Ships in 4 Business Days
$ 1,664.99 USD
$ 1,664.99 USD
When adding performance enhancing modifications to your vehicle, you need a way to get the power to the wheels. The SPEC clutch kit is perfect for preventing premature wear and slippage during heavy acceleration. This kit is designed to hold up to 910 ft. lbs.
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N54/N55 BMW Automatic Transmission Cooler - E82/88 135
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Burger Motorsports - Corporate Logo
T#:19461751
Part#: BMSTRANSCOOLER
Special Order: No Guaranteed ETA
$ 399.00 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. 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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Spec Aluminum Single Mass Flywheel
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For vehicles with production date from 01/2009
Spec Clutches - Corporate Logo
T#:589576
Part#: SB53A-4
Ships in 4 Business Days
$ 639.99 USD
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$ 639.99 USD
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Six Bolt Flywheel - NOTE: Not for models with the DCT transmission
E9X M3 - SPEC Carbon Graphite Clutch (With Flywheel)
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Spec Clutches - Corporate Logo
T#:342325
Part#: SB93ST
Ships in 4 Business Days
$ 1,999.00 USD
$ 1,999.00 USD

Upgrade the clutch performance of your BMW E9X M3 equipped with the S65 4.0L engine using the SPEC Carbon Graphite Clutch. Engineered specifically for this setup, this high-performance clutch delivers outstanding durability and exceptional power handling capabilities, catering to enthusiasts seeking superior clutch performance.

Crafted from premium materials, the SPEC Carbon Graphite Clutch guarantees reliable power transfer, improved grip, and reduced wear. Elevate your driving experience with this precision-engineered clutch upgrade.

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BMW E39 M5 Stage 1 Clutch Kit - 267mm Diameter Upgrade
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Spec Clutches - Corporate Logo
T#:28803230
Part#: SB631-2
Ships in 4 Business Days
$ 599.00 USD
Free Shipping on orders $49 and up

BMW E39 M5 Stage 1 Clutch Kit is a performance upgrade designed to enhance the driving experience of BMW enthusiasts. Engineered for durability and precision, this clutch kit delivers improved clutch engagement and power transfer. Upgrade your BMW E39 M5 with this stage 1 clutch kit for enhanced performance on the road.

  • Enhances driving experience
  • Improved clutch engagement
  • Increased power transfer
  • Engineered for durability
  • Performance upgrade for BMW enthusiasts
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E9X 325i 328i 330i SPEC Stage 2 Performance Clutch Kit
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T#:340436
Part#: SB072-2
Ships in 3 Business Days
Starting at $ 639.00 USD
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Starting at $ 639.00 USD
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The SPEC Stage 2 clutch is a premium, no compromises heavy-duty clutch upgrade for the 2006+ N52 E9X 325/328/330i. Where the stock clutch will slip under hard conditions 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 485 ft-lbs, more than enough for the naturally-aspirated N52 engines. A heavy-duty pressure plate and throw-out bearing complete the package.

The stock clutch in the N52 cars is not a terrible clutch and it is not under-rated. Our tuned 330i street and race cars have used the stock clutch with close to 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, 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. The aluminum is quite a bit 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.

E9X 325/328/330 SPEC Clutch Kit contents:
+ carbon-Kevlar clutch disc
+ heavy-duty pressure plate
+ heavy duty throw-out bearing

This item fits the following BMWs:
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2013 E93 BMW 328i - Convertible
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E60 535i, E82 135i, E9X 335i SPEC Stage 2+ Performance Clutch Kit (fo...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Spec Clutches - Corporate Logo
T#:340441
Part#: SB533H
Ships in 3 Business Days
Starting at $ 899.00 USD
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Starting at $ 899.00 USD
Free Shipping
Tuning your N54/N55 with all of the bolt-on upgrades? Don't allow your clutch to let you down! The stock clutch is fine for a stock car or just a simple software upgrade. But anything more and it quickly becomes the weak link (especially with drag races or hard launches). The 135i/335i/535i/Z4 35i SPEC Stage 2+ clutch kit is perfect for owners who want a performance clutch that works great with simple bolt-on modifications and will have a minimum of downsides or trade-offs. SPEC has spent considerable time and effort on the 335i models to produce a performance clutch that holds up to track and drag strip demands but is also easy to live with for daily driving. This clutch kit is meant to be used only with the stock dual-mass flywheel and is the most user-friendly of the SPEC clutches we offer for the 135/335/535/Z4.

What was most important to them was offering a kit that has stock-like clutch pedal effort but will grab and hold when the car has been mildly tuned. Full bolt-on upgrades like software, intake, FMIC, E85 mix, or methanol demand a better clutch. The Stage 2+ has a peak torque rating of 545ft-lbs but note that the stock dual-mass flywheel will be a limiting factor to how much torque you can use. There have been cases of high mileage or abused flywheels coming apart with high torque tuned engines. We recommend using a new factory flywheel or jumping to the SPEC single-mass flywheel. The clutch in this Stage 2+ kit is self-adjusting, like the factory design, and the engagement point can be adjusted. The clutch disc is a rigid hub (not spring loaded) so it's best used with the stock dual mass flywheel.

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

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

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

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

This item fits the following BMWs:
2008-2013 E82 BMW 135i 135is 1M Coupe
2007-2013 E90 BMW 335i 335xi 335i xDrive - Sedan
2007-2013 E92 BMW 335i 335is 335xi 335i xDrive - Coupe
2007-2013 E93 BMW 335i 335is - Convertible
2008-2010 E60 BMW 535i 535xi 535i xDrive
2009+ E89 Z4 Z4 35i Z4
35is (from February 2009 production)
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