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.

The factory BMW S65 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 27 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 19 lbs., this design significantly reduces rotational mass, allowing your S65 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).
Specifically designed to work with S65 OE-architecture clutches.
Optimized step height maximizes clutch clamp load and offers a prolonged service life.
Performance:

8 lbs. lighter than the factory BMW flywheel!
OEM Dual-Mass: 27 lbs.
Turner Motorsport Single-Mass: 19 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 E39 M5 South Bend Stage 2 Daily Clutch Kit provides a powerful, durable upgrade for the E39 M5, combining exceptional torque capacity with daily drivability. Turner Motorsport offers this clutch kit, designed to handle high horsepower modifications with ease. Featuring a heavy-duty pressure plate and high metal-content organic disc, this clutch system delivers double the friction of a stock lining and a burst strength up to 12,000 RPM.

Ideal for both daily use and moderate race conditions, this Stage 2 clutch kit is rated to manage up to 440 lbs/ft of torque. The solid-hub center section is optimized for compatibility with the OE dual-mass flywheel, ensuring a smooth, reliable driving experience while maintaining a nearly stock pedal feel.

• Heavy-Duty Pressure Plate: Increased clamp load for superior torque handling with minimal change in pedal pressure
• High Metal-Content Organic Disc: Provides double the friction coefficient and enhances rotational strength, rated up to 12,000 RPM
• Smooth Daily Drivability: Near-stock pedal feel, perfect for street driving and moderate racing
• Solid-Hub Center Design: Seamlessly integrates with the OE dual-mass flywheel for optimal performance
• Torque Capacity: Rated to manage up to 440 lbs/ft, ensuring dependable strength for modified power levels

Recommended for daily, street, and moderate race applications.

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.

BMW E46 M3 Stage 2 Daily Clutch Kit is designed to deliver impressive power handling and daily drivability for modified E46 M3s. Turner Motorsport offers this high-performance clutch kit, engineered to withstand increased horsepower and torque while maintaining a near-stock pedal feel. Featuring a heavy-duty pressure plate and high metal-content organic disc, this Stage 2 clutch kit is ideal for street driving, moderate racing, and daily performance needs.

With an enhanced clamp load that doesn’t compromise pedal pressure, this clutch kit is conservatively rated to handle up to 340 lbs/ft of torque. Its solid-hub center design ensures smooth compatibility with the OE dual-mass flywheel, making it a reliable choice for E46 M3 enthusiasts looking to upgrade their clutch system for increased durability and strength.

• Heavy-Duty Pressure Plate: Increased clamp load for enhanced torque capacity with minimal change in pedal pressure
• High Metal-Content Organic Disc: Boosts friction coefficient and rotational strength, rated for up to 12,000 RPM burst point
• Daily Drivability: Maintains a near-stock feel, perfect for street and moderate race applications
• Solid-Hub Center Design: Works seamlessly with the OE dual-mass flywheel for reliable performance
• Torque Handling: Conservatively rated to manage up to 340 lbs/ft of torque for added performance

Recommended for daily, street, and moderate race use.

BMW E46 E39 Stage 2 Daily Clutch Kit delivers a powerful yet smooth upgrade for drivers seeking enhanced performance without sacrificing daily comfort. Turner Motorsport presents this high-quality clutch kit, designed for BMW E46 and E39 models, with a heavy-duty pressure plate to handle high horsepower modifications. The organic disc material, enriched with metal content, provides double the friction coefficient of a standard clutch, ensuring maximum rotational strength up to 12,000 RPM.

This clutch kit is conservatively rated to handle up to 385 lbs/ft of torque, making it suitable for daily, street, and moderate race applications. Its solid-hub center section is perfectly compatible with the OE dual-mass flywheel, delivering a blend of strength, durability, and near-stock pedal feel.

• Heavy-Duty Pressure Plate: Enhanced clamp load for added torque capacity with minimal change in pedal pressure
• High Metal-Content Organic Disc: Increases friction coefficient and rotational strength, rated for up to 12,000 RPM
• Daily Drivability: Provides near-stock pedal feel, ideal for street driving and moderate racing
• Solid-Hub Center Design: Ensures smooth integration with the OE dual-mass flywheel
• Torque Capacity: Conservatively rated for 385 lbs/ft of torque, handling modified power levels with ease

Recommended for daily, street, and moderate race applications.

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

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.

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.

600315 is a Streetlite flywheel, which is considerably lighter than stock and is the most durable flywheel offering from ACT. Materials are properly distributed for maximum strength, lower inertia, good heat tolerance and rigidity. ACT's Streetlite flywheels are preferred for street or drag racing. ACT flywheels are serviceable and can be resurfaced with no need to purchase additional parts.

Feel: Noticeably improved engine response and acceleration, OE to mild gear rattle;

Life: Heat-treated forging for strength and toughness, induction-hardened ring gears for maximum life;

Quality: One piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc. No more warped inserts or loose ring gears;

Recommended Use: Recommended for street and race use;

ACT Difference: Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability;

For use with ACT clutch kits only.

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

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

This clutch kit features a Heavy Duty pressure plate and a Performance Street Rigid clutch disc.

The heavy duty pressure plate included offers a 20-50% clamp load increase, stock-moderate  pedal feel, and heat treated diaphragms for increased strength and performance.

Next in this kit is the Performance Street Rigid clutch disc. This disc is an unsprung, rigid disk that is suited for aggressive street and moderate racing applications. The disc pad features high quality organic friction material with a high copper content for improved heat transfer and a steel backed lining for increased strength in burst load circumstances. This organic clutch disc has a significantly higher torque capacity than a stock disc but due to its rigid nature, may suffer from slightly increased spline wear over time.

Clutch Kit Specs:

• Torque Rating: 440 ft/lbs
• 45% torque capacity increase over stock!
• Type of Disc: Street
• 26-count spline
• Spline Size: 1-3/8" inch
• Disc Weight: 2.3 lbs
• Pressure Plate Weight: 10.2 lbs
• 1 year Warranty from retail purchase date!