Requires shorter flywheel bolts - 8x (P# 11227805885) - T#12322

Lightweight flywheels have proven themselves to be a worthwhile performance enhancement. But with the quicker throttle response and horsepower improvement comes one serious drawback: flywheel chatter. Without the dual-mass flywheel's rubber isolators, a lightweight aluminum flywheel has more rattle than stock. ECS has designed this flywheel using chrom-moly steel and it weighs almost ten pounds less than the stock DMF but not as extreme as full aluminum flywheels. The steel helps dampen vibration and noise so you get near-factory refinement and most of the benefits of a lightweight flywheel: quicker throttle response, better reliability, and more power to the wheels. This flywheel requires the E34 M5 sprung hub clutch kit.

Modern flywheels are built with additional components that are designed to dampen and minimize vibrations from the engine and transmission. Weight has increased and reliability has decreased. With additional weight more energy is required for it to move. A lightweight flywheel does away with the dual mass design and its additional mass so more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance. And with a single-mass flywheel the unreliable DMF design is eliminated.

Stock flywheel weight - 25.0lbs
ECS flywheel weight = 16.55lbs

This item fits the following BMWs:
1992-1999 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2002 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci (5-speed)
1997-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe
2003-2005 E85 BMW Z4 2.5i Z4 3.0i (5-speed)

Pair with T#363031 or any flywheel designed to be used with the E34 M5 clutch.

Upgraded clutch kit to be used with E34 M5 architecture flywheels. Designed for factory and upgraded street car applications to handle up to 375 Ft/lbs at the crank.

Whether you're replacing a worn-out clutch or upgrading for increased power handling, this E34 M5 clutch kit offers a reliable solution for enhanced pedal feel, power capacity, and overall driving satisfaction.

Paired with a modified geometry flywheel, the E34 M5 style clutch is ideally suited for most E36, E46, and others using the same powertrain. It checks all the boxes for essential clutch replacement features. While some aftermarket options may address slipping issues and worn-out clutches, they often sacrifice pedal feel, providing little to no resistance. A soft clutch not only kills the driving experience of your BMW but also reduces confidence when pushing the car to its limits.

On the contrary, you might be in the market for an upgraded clutch to handle your modified engine/forced induction builds. You go from an OE or aftermarket clutch option that has a lackluster and soft pedal feel to the complete opposite side of the spectrum, a very stiff clutch that grabs like an on-and-off switch making the clutch a pain almost undrivable on the street resulting in your favorite car turning into your least favorite car to drive.

The E34 M5 clutch kit balances performance with practicality, ensuring a satisfying driving experience whether you're maintaining your BMW or preparing it for increased power demands.

Kit Contents:

Performance Clutch Disc and Pressure plate
Throw-out Bearing
Clutch Alignment Tool
Pilot Bearing
Clutch features:

Torque Capacity (Crankshaft):
375 Ft / Lbs
Clutch Disc:
240mm Full face, performance organic friction material with integrated copper for enhanced heat dissipation and a long component life
OE-like friction backing plate design for smooth engagement with dual-stage damping springs to reduce gear noise and driveline chatter, and for smooth engagement
Pressure Plate:
Increased clamp force over OEM, rated at 1,729lbs of pressure
Throw-out Bearing:
OE spec for ease of installation and reliable operation
Clutch Alignment Tool:
BMW small 10 spline design, made for perfect fitment into the crank bore
Perfect clutch disc spline and size, easy removal with pull tab
​Not all aftermarket clutch kits include this proper alignment tool! We ensured you received the proper tool for trouble-free installation!
Fitment:
1992-1999 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2002 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci (5-speed)
1997-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe
2003-2005 E85 BMW Z4 2.5i Z4 3.0i (5-speed)
1977-1989 E24 BMW M6
1982-1988 E28 BMW M5
1987-1995 E34 BMW M5

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.

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

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 an Xtreme pressure plate, a Performance Street sprung clutch disc, and an XACT Streetlite Flywheel.

Their Xtreme pressure plate offers a 50-120% clamp load increase, moderate to heavy pedal feel, and is recommended for high performance street and racing applications. All diaphragms went through a four stage heating process for increased strength and unparalleled performance.

Next in this kit is the Performance Street clutch disc. This is the most popular sprung clutch disc and 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 still retains a long life span and operates quietly and reliably.

Clutch Kit Specs:

• Torque Rating: 520 ft/lbs
• 68% torque capacity increase over stock!
• Type of Disc: Street
• 26-count spline
• Spline Size: 1-3/8" inch
• Disc Weight: 3.5 lbs
• Pressure Plate Weight: 10.7 lbs
• 1 year Warranty from retail purchase date!

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 an Xtreme pressure plate and an R6 racing clutch disc.

Their Xtreme pressure plate offers a 50-120% clamp load increase, moderate to heavy pedal feel, and is recommended for high performance street and racing applications. All diaphragms went through a four stage heating process for increased strength and unparalleled performance.

Next in this kit is the R6 racing clutch disc. This disc is an unsprung, rigid disc with 6 pads that is best suited for drag and road racing and handles heat better thanks to its increased surface contact area versus the 4 pad version of this disc, the R4. The R6 pads are composed of ceramic friction materials and the disc has a chome-moly hub that is heat treated for additional strength under high load engagements. Over stock, this disc is much better for faster shifting and significantly higher torque loads. Unlike the stock disc, this racing disk has a slightly shortened life span due to its rigid design and pad composition. This in turn is offset thanks to its fast, aggressive engagement for track use.

Clutch Kit Specs:

• Torque Rating: 665 ft/lbs
• 117% torque capacity increase over stock!
• Type of Disc: Racing
• 26-count spline
• Spline Size: 1-3/8" inch
• Disc Weight: 4 lbs
• Pressure Plate Weight: 10.7 lbs
• 1 year Warranty from retail purchase date!

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.

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 is their most popular and features a Heavy Duty pressure plate and a Performance Street sprung clutch disc.

**Must be used with an ACT XACT Streetlite Flywheel, Part number: 600315**

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 clutch disc. This is the most popular sprung clutch disc and 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 still retains a long life span and operates quietly and reliably.

Clutch Kit Specifications:

• Part Number: BM2-HDSS
• Description: HD/Perf Street Sprung
• Torque Capacity (ft/lbs.): 270
• Torque Capacity Over OE: 20%
• Disc Type: Street Disc
• Spline Count: 14
• Spline Size (in.): 1
• Disc Diameter (in.): 8.4
• Disc Diameter (mm.): 214
• Pressure Plate Type: Heavy Duty
• Product Weight (lbs.): 11.1
• Kit Contents: 3000802, ATGM06, B012, RB131
• Warranty (Product Warranty): One (1) Year from Retail Purchase

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.

Turner Motorsport presents the MS Twin Disc Clutch Kit (MS-006-005) by DKM®, an exceptional clutch solution designed for BMW applications. Engineered to handle 100 to 200% more torque capacity, this twin disc kit features sprung organic discs, providing increased contact surface for higher torque capacity and an extended lifecycle. The kit includes a pressure plate, organic discs, steel flywheel, pilot bearing/bushing, throw-out bearing, and alignment tool for a comprehensive clutch upgrade.

• High Torque Capacity: Holds 100 to 200% more torque to the wheels.
• Durable Construction: Sprung organic discs for longevity and increased contact surface.
• Complete Kit: Includes pressure plate, discs, steel flywheel, pilot bearing/bushing, throw-out bearing, and alignment tool.
• CNC Machined Components: Ensures precision and reliability.
• Powerful Performance: Rated for upwards of 650 ft/lbs of torque.
• Billet Steel Flywheels: Enhances strength and durability.
• Practicable Pedal Feel: Offers sport-inspired performance without sacrificing pedal feel.
• Factory-Like Engagement: Maintains a close-to-factory engagement.
• Street Capable: Ideal for high horsepower street applications.

Upgrade your BMW's clutch performance with the MS Twin Disc Clutch Kit from Turner Motorsport.

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

Every design is thoroughly researched and tested prior to release to guarantee their products meet and exceed the customer's expectations. Careful attention is payed to factors such as engine torque, maximum RPM, drive type (FWD, RWD, AWD), and the type of driving being done, such as street, sport, track events, racing, etc. ACT's clutch kits are competitively priced, often with  specifications greater than competitor's and at a higher quality.

This clutch kit features a Xtreme pressure plate, an G6 racing clutch disc, and an XACT Streetlite Flywheel.

Their Xtreme pressure plate offers a 50-120% clamp load increase, moderate to heavy pedal feel, and is recommended for high performance street and racing applications. All diaphragms went through a four stage heating process for increased strength and unparalleled performance.

The G6 clutch disc is a sprung, 6-pad racing disc that is recommended for high horsepower street and race us and is better at handling high heat than the 4-pad disc. Its material composition is high quality, ceramic friction materials and a heavy duty torsional dampening springs that are rate for this clutch disc's size and expected uses. It has an increased torque capacity, and is better for faster shifting with its low weight and inertia. Being a racing disc, it has good durability and its ceramic composition allows for high heat tolerances. It also has a fast, aggressive engagement in comparison to standard street-use clutch discs.

The XACT Streetlite Flywheel is their most popular flywheel as it is great for both street and drag racing. It allows your engine to rev quicker, giving you increased throttle response, and is considerably lighter than your stock flywheel thanks to its light single-mass design, all while still being very durable!

Clutch Kit Specs:

• Torque Rating: 465 ft/lbs
• 52% torque capacity increase over stock!
• Type of Disc: Street
• 10-count spline
• Spline Size: 1-3/8" inch
• Flywheel Weight: 15.1 lbs
• 1 year Warranty from retail purchase date!

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

Upgrade your Mini with the MINI R56 Stage 3+ Spec Clutch Kit. This high-performance clutch kit is designed to handle the increased power and torque of your Mini, providing improved performance and durability.

• Engineered for high-performance applications
• Handles increased power and torque levels
• Improved clutch engagement and pedal feel
• Enhanced durability for long-lasting performance

• Incorporates advanced "floating pressure system" for a smooth driving experience
• Retains technology from Racing Multi-plate Clutches
• Available in single and twin plate configurations
• Options for soft or hard clutch covers to suit engine output

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 G6 racing clutch disc.

**Must be used with an ACT XACT Streetlite Flywheel, Part number: 600315**

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 G4 racing clutch disc. This disc is a sprung, 4-pad disc that is suited for high horsepower road and track style racing. The G4 pads are composed of ceramic friction materials and the disc has a chome-moly hub that is heat treated for additional strength under high load engagements. Also featured are heavy duty torsional springs that are rated for the clutch kit's expected uses. Over stock, this clutch kit has a much higher torque capacity and is better for quick shifting thanks to lower weight and inertia. Despite its ceramic racing style pads, this disc has great durability. In turn, these pads provide higher heat tolerances and faster, more aggressive clutch engagements.

Specifications:

• Part Number: BM2-HDG4
• Description: HD/Race Sprung 4 Pad
• Torque Capacity (ft/lbs.): 345
• Torque Capacity Over OE: 54%
• Disc Type: Race Disc
• Spline Count: 14
• Spline Size (in.): 1
• Disc Diameter (in.): 8.4
• Disc Diameter (mm.): 214
• Pressure Plate Type: Heavy Duty
• Product Weight (lbs.): 11.2
• Kit Contents: 4214122, ATGM06, B012, RB131
• Warranty (Product Warranty): One (1) Year from Retail Purchase