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Performance Clutch Kits
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This product was last offered at the strikethrough price on
06-14-2026
This product was last offered at the strikethrough price on
06-14-2026
The factory BMW S55 dual-mass flywheel is engineered with comfort in mind, catering to the luxury-oriented expectations of the brand’s driving experience. Its design focuses on dampening drivetrain vibrations, smoothing out gear transitions, and minimizing harshness during operation. However, this refinement costs valuable performance. The dual-mass flywheel adds a substantial 26.5 lbs of rotational mass to the drivetrain, which significantly hinders throttle response and makes rev-matching feel sluggish and disconnected. Moreover, dual-mass flywheels are notorious for being a weak link in modified or high-performance builds and can prove costly to replace when they inevitably fail.
Our Single-Mass Lightweight Flywheel Conversion addresses all of these shortcomings with a purpose-built, lightweight, single-mass design that prioritizes performance. Weighing in at only 18.5 lbs., this design significantly reduces rotational mass, allowing your S55 to achieve its true motorsport potential!
Features & Benefits:
Precision machined from 4140 HT heat-treated chromoly steel for exceptional toughness, even wear properties, and increased durability.
Material quality promotes even wear across the entire friction surface, prolonging component lifespan.
Heat treated to HRC 28-32, tempered to relieve stress and improve dimensional stability.
Hardness improves component wear characteristics.
Black oxide coated for corrosion resistance on non-friction surfaces.
Precision balanced to exceed OEM specification (G16 spec to 175g-mm).
SFI 1.1 certified to ensure safe operation under extreme operating conditions.
Specifically designed to work with S55 OE-architecture clutches.
Optimized step height maximizes clutch clamp load and offers a prolonged service life.
Performance:
10 lbs. lighter than the factory BMW flywheel!
OEM Dual-Mass: 26.5 lbs.
Turner Motorsport Single-Mass: 18.5 lbs.
Faster revs
Improved throttle response and acceleration
Allows for a more engaging driving experience and delivers a feeling of direct connection
Installation:
Flywheel Hardware: For added peace of mind, apply Blue or Orange Loctite when installing factory flywheel bolts that do not come with pre-applied threadlocker.
This product was last offered at the strikethrough price on
06-14-2026
This product was last offered at the strikethrough price on
06-14-2026
BMW E30 M20 Clutch And Flywheel Kit - I/IS from Turner Motorsport offers a premium upgrade for naturally aspirated M20 engines. This comprehensive kit includes a lightweight single-mass flywheel and a Sachs clutch kit, providing a significant performance boost and refreshing the driving experience of early and late-model E30s.
This product was last offered at the strikethrough price on
06-14-2026
This product was last offered at the strikethrough price on
06-14-2026
Lightweight single mass flywheel paired with the Sachs clutch kit, perfect for naturally aspirated M20's! Fits early and late model cars.
A perfect upgrade and refreshment for your M20! Free up lost horsepower with the lightened single mass flywheel and get back the life in your clutch pedal. This kit is put together with the idea of an OEM+ upgrade, perfect for people looking to refresh the driving experience of their M20 and get back the full potential of this tried and true motor.
This kit includes everything you need to do the clutch and flywheel service on your M20. While you're in there it is a good idea also to purchase the common transmission seals, fluid, and mounting hardware which are listed below.
Clutch Kit:
Sachs OE replacement clutch disc - 21211223097
Sachs pressure plate - 21211223026
Sachs 323 throw-out bearing (taller bell housing/ETA models) - 21511204525
Pilot bearing - 11211720310
Turner Single-Mass Flywheel:
Lightweight flywheel for quicker, effortless revs that improve throttle response and free up lost horsepower. Tested and approved by the engineering team at Turner Motorsport, tested in early, late, ETA and IS model E30s for confirmed fitment.
Fits shallow and deep bell housing transmissions
Ring gear suited for both starters (P# 12411726504 + 12411361874)
Heavier than other lightweight flywheels, and lighter than OEM, it's like the Goldie Locks of flywheels - it's just right
Reference pin for bell housing crank sensor
Strong Single-Piece 4140 HT Steel construction
Designed to be used with factory and OE clutches
Weight savings between 5-14lbs depending on your OE flywheel
Components strongly suggested while your transmission is out of the car.:
Transmission Seals Kit - T#29898446
Fluid - 75-90 or preferred fluid type (approximately 1.25 liters)
Transmission Mounting hardware - T#30197962
This product was last offered at the strikethrough price on
06-14-2026
This product was last offered at the strikethrough price on
06-14-2026
From the factory, the E46 M3 featured a dual-mass flywheel and self-adjusting clutch kit. While this provided an easy, comfortable driving experience, it lacks the durability and performance features of an upgraded clutch and flywheel kit. ECS Tuning's all-new S54 performance clutch kit is designed to address these issues. Featuring a full-face clutch disc and heavy-duty pressure plate, this kit offers increased power-holding capability, exceptional pedal feel, and superior durability.
The factory dual-mass flywheel weighs 24.2 lbs. This heavyweight component favors dampened vibrations and smooth gear changes—not performance. The 16.5 lb. E34 M5 flywheel designed by ECS omits the bulky dual-mass design for a single-mass, chromoly steel flywheel. For the performance-minded enthusiast, this translates to quicker RPM changes, easier "heel-toe" downshifts, and improved acceleration.
Engineered in-house with the enthusiast in mind, this is the perfect option for those wanting a lightweight flywheel and performance clutch, without the heavy pedal feel commonly associated with aggressive clutch kits. The ECS S54 performance clutch and lightweight flywheel are designed to accommodate all conditions: from Sunday drives through the country to the abuse of the track. No matter your driving style or ability, this is the flywheel and clutch kit for you.
PART DESIGN
ECS S54 Performance Clutch Kit:
Compatible with any performance flywheel that is designed to accept an E34 M5 architecture clutch Sprung-hub clutch disc Includes ECS performance pressure plate, performance clutch disc, throwout bearing, pilot bearing, alignment tool, and all flywheel and pressure plate hardware ECS Single-Mass Lightweight Flywheel:
Eliminates the factory dual-mass flywheel for: Improved throttle response Improved acceleration Lower replacement cost Hardened 4140 Chromoly Steel for excellent engagement feel and wear resistance Zinc-plated for added corrosion resistance Weighs in at just 16.5 lbs! SFI tested and certified to ensure safe operation under all conditions Why is SFI testing and certification important?
The SFI Foundation, Inc. (SFI) is a non-profit organization established to issue and administer standards for the quality assurance of specialty performance and racing equipment. SFI certification indicates a flywheel has been certified using industry-standard SFI Spec 1.1 standards by an independent testing body to ensure the quality of both design and materials for flywheels utilized in competitive motorsports.
Having successfully passed SFI certification, this flywheel has an individual SFI serial number found in a laser etching, and on an affixed sticker. This certification means the ECS-engineered flywheel is safe and reliable during the rigors of competitive racing; it's also safe and reliable for years and years of street use.
PRODUCT DEVELOPMENT
This Performance Clutch Kit & Lightweight Flywheel was designed, engineered, tested, and quality inspected by the ECS Research and Development team. ECS Tuning strives for the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing an in-house 3D printer, and rigorous long-term product testing.
This product was last offered at the strikethrough price on
06-13-2026
This product was last offered at the strikethrough price on
06-13-2026
MINI R Chassis OS Giken Clutch Kit - STR Series enhances performance and durability for your BMW or MINI. This high-performance clutch kit from OS Giken is designed specifically for MINI R chassis models, offering improved torque capacity and durability. With its STR series design, it ensures smooth engagement and precise control, perfect for both street and track applications. Engineered with high-quality materials, this clutch kit provides reliable performance under demanding conditions.
Upgrade your BMW or MINI R chassis with the MINI R Chassis OS Giken Clutch Kit - STR Series for superior clutch performance and reliability.
Elevate your driving experience with the STR Clutch, perfect for those who enjoy spirited driving and require a balance between street and occasional race performance. While it may differ from a Factory Dual Mass Clutch, the STR Clutch comes in single and twin plate configurations, paired with a unique clutch cover to maintain a factory clutch pedal feel. This ensures a race-ready clutch that's also easy to handle in everyday driving situations.
Upgrade your clutch and enjoy the performance and versatility of the STR Clutch.