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.

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.

• Lightweight Single-Mass Flywheel: Enhances throttle response and frees up lost horsepower by reducing rotating mass. Provides a perfect balance between lightweight performance and durability.
• Sachs OE Replacement Clutch Kit: Includes clutch disc, pressure plate, throw-out bearing, and pilot bearing, designed for reliable performance and smooth operation.
• Improved Driving Experience: Refreshes the clutch pedal feel and driving dynamics of the M20 engine, ideal for both early and late model E30s.
• Quality and Fitment: Tested and approved by Turner Motorsport for optimal performance and confirmed fitment on various E30 models.
• Additional Components: Recommended transmission seals, fluid, and mounting hardware available separately for a complete service.

Performance clutch installation kit includes everything you need for a stage one clutch upgrade. Dampened Disc version. 

• FX100 (Stage I)

• High performance street system

• Holding capacity 70% over stock

• Heavy-Duty reinforced pressure plate

• Hi-Leverage™ pressure ring design

• Sprung hub/cushioned disc

• Steel-backed organic friction material

BMW E39 540i Stage 2 Clutch Kit is designed to enhance the performance and reliability of your BMW's clutch system. Ideal for enthusiasts looking to upgrade from the stock setup, this Stage 2 clutch kit delivers superior holding power and durability.

• Increased Holding Capacity: Provides 70% more holding power compared to stock, accommodating higher torque and demanding driving conditions.
• Heavy-Duty Construction: Features a reinforced pressure plate for added strength and longevity.
• Enhanced Durability: Includes a sprung organic/fiber tough disc, ensuring long-lasting performance and smooth engagement.
• Complete Kit: Comes with all necessary components, including a pressure plate, clutch disc, throw-out bearing, pilot bearing or bushing, alignment tool, and pressure plate bolts.
• Flywheel Compatibility: Designed to work with a single mass flywheel (flywheel not included).

Turner Motorsport recommends the BMW E39 540i Stage 2 Clutch Kit for those seeking improved clutch performance and durability.

Upgrade Your Clutch with the Performance Clutch Installation Kit

Elevate your vehicle's clutch performance with the all-inclusive Performance Clutch Installation Kit, tailor-made for a stage one clutch upgrade. This kit incorporates a sturdy steel flywheel and Clutch Masters' FX100 (Stage I) components.

• High-Performance Street System
• 70% Increased Holding Capacity Over Stock
• Heavy-Duty Reinforced Pressure Plate
• Hi-Leverage™ Pressure Ring Design
• Sprung Hub/Cushioned Disc
• Steel Backed Organic Friction Material

Experience improved clutch performance with the FX100, known for its robust design and enhanced holding capacity. This kit is perfect for street applications, providing reliable clutch performance. Included in the package are the Pressure Plate, Clutch Disc, Throw-out Bearing (if applicable), Pilot Bearing or Bushing (if applicable), and an Alignment Tool.

Enhance your vehicle's performance with the FX100 (Stage I) Performance Clutch Installation Kit, a comprehensive package perfect for a stage one clutch upgrade. This kit comprises all essentials, including a new single mass flywheel, and is designed with a dampened disc version for optimal functionality. Key features of the FX100 (Stage I) kit include:

• High-performance street system for improved functionality
• Increased holding capacity by 70% over stock for enhanced power transmission
• Heavy-duty reinforced pressure plate for added durability
• Hi-Leverage™ pressure ring design for optimal performance
• Sprung hub/cushioned disc for smoother engagement
• Steel-backed organic friction material for reliable grip
• Single-mass steel flywheel, ensuring robustness and efficiency

Performance clutch installation kit includes everything you need for a stage one clutch upgrade. Dampened Disc version. 

• FX100 (Stage I)

• High performance street system

• Holding capacity 70% over stock

• Heavy-Duty reinforced pressure plate

• Hi-Leverage™ pressure ring design

• Sprung hub/cushioned disc

• Steel-backed organic friction material

Fitment in following BMWs:This item fits the following BMWs: 
2003-2005 E46 BMW 330i 330ci  only for 6-speed manual transmission 

Rev up your vehicle's performance with this comprehensive clutch installation kit designed for a stage one clutch upgrade. The kit includes an aluminum flywheel, making it a complete package for enhancing your car's performance.

The FX200 (Stage 2) clutch system boasts high-performance capabilities for street driving. It offers a holding capacity that's 70% greater than stock clutches, thanks to the heavy-duty reinforced pressure plate. With Clutch Masters' unique Hi-Leverage™ pressure ring design, this system ensures top-tier performance.

The sprung hub/cushioned disc and steel-backed Organic/Fiber Tough disc further contribute to its durability and performance.

All Clutch Masters clutch kits come with the essential components, including the pressure plate, clutch disc, throw-out bearing (when applicable), pilot bearing or bushing (when applicable), and an alignment tool.

Upgrade the holding power of your clutch with the Clutch Masters FX250 clutch kit.

FX250 (Stage II)

• Extra long life street system
• Holding capacity 70% over stock
• Heavy-Duty reinforced pressure plate
• Rigid organic/fiber tough disc

All Clutch Masters clutch kits come complete with:

• Pressure Plate
• Clutch Disc
• Throw-out Bearing
• Pilot Bearing or Bushing
• Alignment Tool
• Pressure Plate Bolts

This clutch kit does not include a flywheel. 

BMW E36 Z3 Stage 1 Single Sprung Organic Clutch and Flywheel Kit from Turner Motorsport offers a high-performance solution with a lightweight design for improved throttle response and exceptional torque capacity. Ideal for high-performance racing applications, this kit provides the ultimate balance between drivability and power.

• Lightweight Design: Enhances throttle response and overall driving dynamics.
• High Torque Capacity: Supports up to 340 ft/lbs of torque, making it suitable for performance-driven applications.
• Precision Engineering: Features the latest pressure plate design and friction material for optimal balance between drivability and performance.
• Enhanced Pedal Feel: Carefully analyzed pivot point and diaphragm design ensure positive pedal feel and increased clamping force.

Specifications:

• Clutch Disc Diameter: 9.448"
• Clutch Disc Spline: 10
• Disc Material: Organic
• Disc Type: Sprung Solid
• Input Shaft Diameter: 1.140625"
• Flywheel Step: -3.8mm
• Maximum Torque Capacity: 340 ft/lbs
• Recommended Use: Street Use

Includes:

• Single Mass Flywheel
• 1 Sprung Organic Clutch Disc
• Pressure Plate
• Flywheel Bolts
• Pressure Plate Bolts
• Release Bearing
• Alignment Tool
• Clutch Spline Grease

XClutch performance upgrades are developed with over 30 years of experience and advanced testing facilities, offering top-notch engineering for both street and race applications.

Upgrade the holding power of your clutch with the Clutch Masters FX250 clutch kit.

FX250 (Stage II)

• Extra long life street system
• Holding capacity 70% over stock
• Heavy-Duty reinforced pressure plate
• Rigid organic/fiber tough disc

All Clutch Masters clutch kits come complete with:

• Pressure Plate
• Clutch Disc
• Throw-out Bearing
• Pilot Bearing or Bushing
• Alignment Tool
• Pressure Plate Bolts

This clutch kit does not include a flywheel. 

• Lightweight design improves engine response
• Enhances acceleration and quicker revving
• Specifically designed for the MINI Cooper S model

Performance clutch installation kit includes everything you need for a stage one clutch upgrade. Dampened Disc version. 

• FX100 (Stage I)

• High performance street system

• Holding capacity 70% over stock

• Heavy-Duty reinforced pressure plate

• Hi-Leverage™ pressure ring design

• Sprung hub/cushioned disc

• Steel-backed organic friction material

Fitment in following BMWs:
E46 BMW - Non-M submodels, For vehicles with 5 speed transmissions only. Fits 325i/Ci models with a production date up to 03/2003.
Z3 BMW - Non-M submodels,  ACT recommends upgrading to the E36 M3 Slave cylinder for best clutch operation.

Upgrade the holding power of your clutch with the Clutch Masters FX250 clutch kit.

FX250 (Stage II)

• Extra long life street system
• Holding capacity 70% over stock
• Heavy-Duty reinforced pressure plate
• Rigid organic/fiber tough disc

All Clutch Masters clutch kits come complete with:

• Pressure Plate
• Clutch Disc
• Throw-out Bearing
• Pilot Bearing or Bushing
• Alignment Tool

Fitment in following BMWs:This item fits the following BMWs: 
2003-2005 E46 BMW 330i 330ci  only for 6-speed manual transmission