Fits 2001-2005 BMW 330Ci, 330i, 330xi, 530i, and Z3 (Roadster/Coupe).

The SPEC Stage 3+ Clutch Kit is a high-performance upgrade designed for BMW owners who require increased torque capacity without sacrificing the drivability required for daily street use. This kit bridges the gap between a pure race clutch and a heavy-duty street unit, providing the clamping force needed for forced induction or high-output naturally aspirated builds while maintaining a predictable pedal feel.

• Torque Capacity: Engineered for high-output street and track applications.
• Direct Fit: Designed to replace the factory clutch assembly on select 2001-2005 3-Series, 5-Series, and Z3 models.
• Construction: High-torque pressure plate and performance clutch disc for improved engagement and thermal management.
• Part Number: SB033F

Fits 1990-2001 Nissan Skyline models equipped with the RB20 engine.

The SPEC Billet Steel Flywheel is engineered as a high-performance replacement for the heavy factory cast iron unit. Manufactured from high-carbon billet steel, this flywheel provides a significant improvement in engine acceleration and throttle response while maintaining sufficient mass to ensure smooth drivability in both street and track environments.

Unlike standard cast flywheels, SPEC billet units are precision CNC-machined to exacting tolerances, ensuring a perfectly flat friction surface and consistent rotational balance. This construction offers superior heat dissipation and structural integrity, making it a critical upgrade for high-RPM use and forced induction setups where factory components may fail.

• Precision CNC-machined from high-carbon billet steel for maximum durability
• Reduces rotational inertia for faster revving and improved throttle response
• Engineered to resist warping and heat-induced surface cracking
• Compatible with SPEC clutch kits and OEM-style clutch assemblies
• SFI certified for safety in high-performance and racing applications

Fits 1986-1992 Toyota Supra Base and Turbo models.

The SPEC Stage 2+ Clutch Kit (ST633H) provides a significant upgrade in torque capacity for modified A70 chassis Supras without sacrificing the pedal feel required for daily street use. Positioned as a hybrid solution between full street and race applications, this kit utilizes a multi-friction disc featuring a carbon semi-metallic material on one side and Kevlar on the other.

This specific friction combination allows for a higher burst strength and heat tolerance than standard Stage 2 units, making it an ideal choice for vehicles with upgraded turbochargers, increased boost levels, or those used in spirited driving, autocross, and amateur drag racing.

• Manufacturer Part Number: ST633H
• Stage: 2+ (High Torque Hybrid)
• Disc Material: Carbon Semi-Metallic / Kevlar multi-friction
• Fitment: Direct replacement for 1986-1992 Toyota Supra (Base & Turbo)
• Usage: Performance street, track day, and mild forced induction applications

Fits select 2005-2013 Chevrolet Camaro SS and Corvette (6.0L / 7.0L). The SPEC Stage 2 Clutch Kit (SC662) is a performance-oriented upgrade designed for drivers who require a significant increase in torque capacity for spirited street or track use. This kit replaces the factory assembly with a high-performance pressure plate and disc designed to maintain a manageable pedal feel while providing the reliable clamping force needed for modified LS-series engines.

• Manufacturer Part Number: SC662
• Series: SPEC Stage 2
• Fitment: 2010-2013 Chevrolet Camaro SS and 2005-2009 Chevrolet Corvette (Base and Z06)
• Engine Compatibility: 6.0L (LS2) and 7.0L (LS7) applications
• Components: Includes high-torque pressure plate and performance friction disc

Fits 2006-2007 Subaru Forester XT Limited and Impreza WRX, WRX Limited, and WRX TR.

The SPEC Stage 2 Clutch Kit (SU202) provides a significant upgrade in torque capacity and heat management for street and performance applications. Designed for modified vehicles that require more holding power than a standard Stage 1 unit, this kit features a pure Kevlar friction material on a steel-backed lining. The segmented friction surface offers improved heat dissipation and longevity, making it an excellent choice for spirited street driving and occasional track use where high-heat cycles are common.

• Direct replacement for factory clutch assembly
• Pure Kevlar friction material for superior heat resistance and durability
• High-clamp pressure plate increases holding capacity over stock
• Segmented lining design for consistent engagement and cooling
• Ideal for street, rally, and autocross use
• Manufacturer Part Number: SU202

Fits 1998-2002 Nissan Skyline GT-R (BNR34) models equipped with pull-type clutch actuation.

The SPEC Stage 2+ Clutch Kit is engineered for high-performance street and track applications where increased torque capacity is required without sacrificing drivability. This hybrid kit bridges the gap between the Stage 2 and Stage 3 series, utilizing a multi-friction disc that features a segmented carbon semi-metallic material on one side and a high-performance friction material on the other. This configuration provides a significant increase in holding power while maintaining a smooth, predictable engagement suitable for daily use.

• Manufacturer Part Number: SN263H
• Direct replacement for pull-type BNR34 Nissan Skyline GT-R clutches
• Hybrid friction disc for optimized torque capacity and streetability
• Heavy-duty sprung hub assembly to dampen vibrations and protect the drivetrain
• High-clamp pressure plate designed for consistent pedal feel and engagement

Fits select 1975-1998 Nissan 240SX, 280Z, 280ZX, Maxima, 200SX, 810, 720, 620, and Van (2.4L / 2.8L).

The SPEC Clutch Stage 3 Clutch Kit (MPN: SN543) is a high-performance drivetrain upgrade designed for enthusiasts who require increased torque capacity and aggressive engagement. Built to withstand the demands of modified 2.4L and 2.8L Nissan engines, this Stage 3 assembly is engineered for both heavy street use and track environments where heat management and reliable bite are critical.

• Manufacturer Part Number: SN543
• Series: Stage 3 Performance
• Compatible Displacements: 2.4L, 2.8L
• Direct fitment for L-series and KA-series drivetrain applications
• High-torque capacity friction material for improved power transfer

This kit provides a significant upgrade over factory components, offering the durability needed for high-performance driving while maintaining the precise fitment required for Nissan chassis ranging from the classic Z-cars to the S13/S14 240SX.

Fits Nissan vehicles equipped with the RB20 or RB25 engine.

The SPEC Stage 2 Clutch Kit (SN232) is a performance-oriented upgrade engineered for enthusiasts who require increased torque capacity without sacrificing street driveability. This kit replaces the factory clutch assembly with a high-clamp pressure plate and a specialized friction disc, making it an ideal solution for modified street cars and weekend track vehicles.

• Engineered for performance street and light track applications
• Substantial increase in torque capacity over original equipment (OE)
• Friction material designed for heat resistance and extended service life
• Maintains smooth engagement characteristics for daily driving comfort
• Direct bolt-on fitment for RB20 and RB25 drivetrains
• Manufacturer Part Number: SN232

Fits 2011-2012 Honda CR-Z Base and EX models equipped with the 1.5L engine.

The SPEC Clutch Stage 1 Clutch Kit (SHZ151) is engineered for street and light track applications, offering a significant upgrade in torque capacity and durability over the factory unit. This kit is designed for drivers who need improved engagement feel and heat management without the harshness of a full race clutch, making it ideal for daily-driven vehicles with bolt-on modifications.

• Manufacturer Part Number: SHZ151
• Series: Stage 1
• Application: Street, Autocross, and Light Track
• Engine Compatibility: 1.5L
• Includes high-clamp pressure plate and organic friction disc

This kit provides a direct-fit solution that bolts to the factory mounting points, ensuring a straightforward installation while maintaining smooth pedal modulation and reliable power transfer through the drivetrain.

Fits 2013-2014 Ford Fiesta ST (1.6T).

The SPEC aluminum flywheel is designed to reduce rotational mass and improve the engine's ability to rev freely. By replacing the heavy factory flywheel, this unit lowers the moment of inertia, resulting in significantly faster throttle response and improved acceleration through the gears. It is a critical upgrade for enthusiasts looking to maximize the performance of the 1.6T powerplant in both street and track environments.

• Precision machined from high-quality aluminum for durability and balance
• Reduces rotational mass for quicker engine acceleration
• Enhances throttle response and eases rev-matching
• Replaceable friction plate for extended service life
• Manufacturer Part Number: SF33A-9

Upgrade your drivetrain with the SPEC Stage 1 Clutch Kit (SZ451), designed specifically for the 1994-2005 Mazda Miata (1.8L). This kit provides a significant increase in torque capacity over the factory unit while maintaining excellent pedal feel and smooth engagement, making it an ideal solution for spirited street driving and mild bolt-on modifications.

• Fits 1994-2005 Mazda Miata Base and LS models (1.8L engine)
• Engineered for high-performance street use with enhanced clamp load
• Includes a high-torque pressure plate and a high-performance organic friction disc
• Direct replacement for the original equipment (OE) clutch assembly
• Manufacturer Part Number: SZ451

Each SPEC Stage 1 kit is balanced for vibration-free operation and provides the durability required for enthusiasts who demand more from their 1.8L BP-series engine without sacrificing daily drivability.

Fits 2013-2016 Hyundai Genesis Coupe models equipped with the 3.8L engine. This SPEC Stage 1 Clutch Kit is an ideal performance upgrade for street-driven vehicles with bolt-on modifications, providing increased torque capacity without sacrificing pedal feel or drivability.

Constructed with a high-clamp pressure plate and a steel-backed woven organic friction disc, this kit (MPN: SY831-2) offers a significant improvement in clamping force over the factory unit. It is engineered to handle spirited daily driving while maintaining a smooth engagement profile suitable for everyday use.

• Fits 2013-2016 Hyundai Genesis Coupe (3.8L V6)
• Stage 1 street-performance friction material
• High-clamping pressure plate for increased torque capacity
• Direct-fit replacement for the OE clutch assembly
• Steel-backed woven organic disc for durability and smooth engagement
• Manufacturer Part Number: SY831-2

Fits 2010-2012 Hyundai Genesis Coupe 3.8L, including Grand Touring, Track, and R-Spec models.

The SPEC Clutch Stage 1 Clutch Kit (MPN: SY381-2) is a performance-oriented upgrade for daily-driven vehicles or street cars with mild modifications. This kit offers an increased torque capacity over the original equipment while maintaining smooth engagement and manageable pedal effort. It features a high-clamp pressure plate and a premium, steel-backed woven organic friction disc designed for durability and heat resistance.

Important Installation Note: This SPEC Stage 1 kit is designed to be used exclusively with a SPEC Flywheel. It is not compatible with the factory dual-mass flywheel.

• Manufacturer Part Number: SY381-2
• Stage 1 Street/Strip Performance
• High-torque pressure plate with increased clamp load
• High-grade steel-backed organic friction material
• Maintains smooth engagement for daily drivability

Fits 2008-2012 Volkswagen Eos, GTI, Jetta, and Passat (2.0T).

This SPEC billet steel flywheel is engineered to replace the factory dual-mass unit, providing a more durable and performance-oriented solution for your Volkswagen. CNC-machined from high-tensile carbon steel, this flywheel offers a stable, high-friction surface designed to handle increased heat loads and more aggressive clutch engagement than standard components. The billet construction ensures maximum strength and precise balance, improving throttle response and engine rev characteristics by reducing rotational mass.

• Precision CNC-machined from billet carbon steel for superior strength
• Direct replacement for OE flywheel assemblies
• Designed to work seamlessly with SPEC clutch kits or OE-equivalent units
• Offers improved durability under high-performance driving conditions
• Manufacturer Part Number: SV87S-4

Fits select 2006-2008 Volkswagen Eos, GTI, Jetta, and Passat models (2.0T).

The SPEC SV87S billet steel flywheel is a high-performance replacement for the factory dual-mass flywheel (DMF) found in VW 02Q 6-speed manual transmissions. Engineered for drivers who require increased durability without the excessive noise or chatter often associated with lighter aluminum options, this steel flywheel maintains the necessary rotating inertia for smooth street drivability and consistent engagement. It is precision-machined to exacting tolerances, providing a stable friction surface and improved heat dissipation for tuned 2.0T engines.

• Manufacturer Part Number: SV87S
• Material: High-carbon billet steel
• Transmission Compatibility: 02Q 6-Speed Manual
• Engine Application: 2.0T FSI/TSI
• Design: Single-mass conversion to replace failure-prone OE dual-mass units

Fits 2006-2008 Volkswagen GTI, Jetta, Eos, and Passat (2.0T).

The SPEC Stage 3 Clutch Kit is engineered for modified 2.0T engines that require increased torque capacity without sacrificing drivability. This performance upgrade is specifically designed for the Volkswagen 02Q 6-speed manual transmission, providing a significant increase in clamping force and heat management over the factory unit. It is ideal for street-driven vehicles that see occasional track use or high-output daily drivers.

• Manufacturer: SPEC Clutch
• Product Line: Stage 3
• Part Number: SV873-2
• Transmission Compatibility: 02Q 6-Speed Manual
• Engine Fitment: 2.0T Turbocharged 4-Cylinder
• Application: High-torque street/track use

Each kit includes the necessary components to replace your worn OE clutch and handle the increased power demands of aftermarket tuning and bolt-on performance parts.

Fits 2006-2008 Volkswagen Eos, GTI, Jetta, and Passat models equipped with the 2.0T engine.

This SPEC Stage 2 Clutch Kit (MPN: SV872-2) is engineered for drivers who require increased torque capacity without sacrificing daily drivability. Designed to replace the factory components, this kit provides a significant upgrade in holding power and heat dissipation, making it ideal for street and track use in tuned MKV and B6 platform vehicles.

• Manufacturer Part Number: SV872-2
• Series: Stage 2
• Compatible Engine: 2.0T
• Direct fitment for factory mounting points
• Increased clamp load and friction surface durability

Fits select 2002-2005 Volkswagen Beetle, Golf, and Jetta models equipped with the 6-speed manual transmission (1.8T).

The SPEC Stage 2 Clutch Kit (SV872) is engineered for street and track applications where increased torque capacity is required without sacrificing daily drivability. This kit features a segmented pure Kevlar friction material with a steel backing, providing a significant increase in clamping force and heat dissipation compared to factory organic discs. It is an ideal upgrade for modified 1.8T engines that need a reliable, long-lasting solution to transfer power to the 02M/02Q 6-speed gearbox.

• Manufacturer Part Number: SV872
• Stage 2 high-torque Kevlar friction material
• Optimized for smooth engagement and extended wear life
• Designed specifically for the VW 6-speed manual drivetrain
• Direct replacement for the original clutch assembly

Fits select 1992-2002 Volkswagen Corrado, Golf, Jetta, and Passat models.

The SPEC Aluminum Flywheel (MPN: SV82A) is a precision-engineered upgrade designed to significantly reduce rotating mass compared to the heavy factory unit. By lowering the moment of inertia, this flywheel allows the engine to rev more freely, providing sharper throttle response and improved acceleration. It is built to maintain high-RPM integrity while offering a rebuildable design for long-term service.

• CNC-machined from high-quality aluminum for weight reduction and strength
• Features a replaceable friction plate for extended service life
• Designed to improve engine response without compromising durability
• Precision balanced for smooth operation and reduced vibration
• Manufacturer Part Number: SV82A

Vehicle Fitment:

• 1992-1994 Volkswagen Corrado SLC
• 1995-1999 Volkswagen Golf GTI / GTI VR6
• 1994-2002 Volkswagen Jetta GLS / GLX
• 1993-1997 Volkswagen Passat GLX

Upgrade your drivetrain with the SPEC SV81S Steel Flywheel, designed specifically for select 2002-2005 Volkswagen models equipped with the 1.8T engine and 6-speed manual transmission. This high-carbon billet steel flywheel is an ideal replacement for the failure-prone factory dual-mass unit, offering significantly improved durability and more consistent clutch engagement for performance-oriented driving.

By reducing rotating mass compared to stock components, this SPEC flywheel improves throttle response and allows the engine to rev more freely throughout the powerband. It is CNC-machined to precise tolerances to ensure a perfect balance and a flat friction surface, making it an essential upgrade when installing a performance clutch kit or refreshing a worn transmission system.

• Fits 2002-2005 Volkswagen Beetle, Golf, and Jetta (1.8T 6-Speed)
• Manufactured from high-strength billet steel for maximum longevity
• Provides a more direct mechanical feel compared to OE dual-mass flywheels
• Precision balanced to reduce vibration and protect engine bearings
• Manufacturer Part Number: SV81S

Fits select 1990-2003 Audi TT, Volkswagen Corrado, Golf, Jetta, and Passat (2.8L).

The SPEC Stage 2+ Clutch Kit (SV363H) is engineered for enthusiast-driven vehicles that require increased torque capacity without the harsh engagement of a full-race setup. This kit bridges the gap between the Stage 2 and Stage 3 series, utilizing a hybrid friction surface that offers a higher coefficient of friction than standard organic linings while maintaining smooth, street-friendly drivability. It is a direct-fit replacement designed to handle increased output from bolt-on performance modifications.

• Manufacturer Part Number: SV363H
• Series: Stage 2+ Performance
• Engine Compatibility: 2.8L
• Construction: High-clamp pressure plate with hybrid friction disc
• Application: Ideal for aggressive street use, spirited driving, and occasional track days

Each kit is built to tight tolerances to ensure precise shifting and reliable power transfer to the drivetrain. The SV363H kit replaces the worn factory assembly with high-performance components capable of supporting higher-than-stock horsepower and torque levels.

The SPEC Stage 3 Clutch Kit (SV363) is engineered for high-performance street and track applications, offering a substantial increase in torque capacity over factory components. This kit is designed for 5-speed manual transmissions, providing the necessary thermal stability and friction required for modified engines while maintaining consistent engagement and pedal feel.

Fits 1990-2003 Audi TT and select Volkswagen Corrado, Golf, Jetta, and Passat (1.8T / VR6 / TDI / G60).

• Manufacturer Part Number: SV363
• Performance Stage: Stage 3 High-Torque
• Application: 5-Speed Manual Transmissions
• Compatible with multiple 1990-2003 VW/Audi platforms
• Engineered for direct-fit installation on factory mounting points

Fits 2002-2005 Volkswagen Golf GTI VR6, Jetta GLI, and R32 (2.8L).

The SPEC SV23S-2 Steel Flywheel is a precision-engineered upgrade for performance-minded drivers. By replacing the heavy factory flywheel with a high-carbon billet steel unit, this component significantly reduces rotational mass to improve throttle response and acceleration. This flywheel is CNC-machined for perfect balance and designed to withstand the heat and stress of spirited driving and track use while maintaining enough inertia for smooth street operation.

• Billet steel construction provides superior durability and heat capacity compared to aluminum
• CNC-machined to exacting tolerances for a vibration-free installation
• Designed for use with SPEC performance clutch kits or OE-equivalent assemblies
• Improves engine response by reducing rotational weight
• Manufacturer Part Number: SV23S-2

Fits 2004 Chevrolet Colorado models equipped with a 5-speed manual transmission.

This SPEC Stage 1 custom clutch disc (STD621-870) is engineered as a direct-fit replacement for the factory unit, offering an upgrade in durability and engagement feel for street-driven vehicles. Designed specifically for the early Colorado 5-speed drivetrain, this disc provides a reliable solution for drivers seeking a balance between daily drivability and consistent performance.

• Manufacturer: SPEC Clutch
• Series: Stage 1
• Part Number: STD621-870
• Fitment: 2004 Chevrolet Colorado (5-Speed Manual)
• Type: Custom Clutch Disc

Fits 1986-1992 Toyota Supra Base and Turbo models.

The SPEC Stage 3 Clutch Kit (MPN: ST633) is engineered for high-performance street, drag, and track applications. This kit provides a significant increase in torque capacity, making it a critical upgrade for turbocharged builds or naturally aspirated engines with bolt-on modifications. Designed as a direct replacement for the factory assembly, it maintains compatibility with the OE flywheel interface while offering the clamping force needed for aggressive driving.

• Stage 3 Configuration: Specifically tuned for high-torque street and strip use.
• Performance Disc: Features a high-friction semi-metallic friction material for heat resistance and rapid engagement.
• Heavy-Duty Pressure Plate: Optimized clamp load to prevent slip under high-boost or high-RPM conditions.
• Vehicle Specific: Precisely engineered for the 1986-1992 Toyota Supra (A70 chassis).
• MPN: ST633

Fits select 2004-2007 Volvo S40 T5 and S60R (2.5L).

The SPEC SO60S-O steel flywheel is a high-strength performance upgrade designed to replace the heavy factory unit. Precision-manufactured from billet steel, this flywheel is engineered to work seamlessly with your vehicle's stock clutch and pressure plate. This makes it an ideal solution for Volvo owners looking to improve engine response and durability without the necessity of switching to a full aftermarket clutch kit.

• Manufacturer Part Number: SO60S-O
• Material: High-carbon billet steel for superior heat dissipation and strength
• Compatibility: Designed for use with stock OE clutch and pressure plate
• Direct bolt-on replacement for factory flywheels
• Engineered for 2.5L turbocharged Volvo engines

The SPEC Clutch Super Twin SS-Trim Clutch Kit (SN46SST) provides extreme torque capacity for 1990-1996 Nissan 300ZX Turbo models (3.0L) that have exceeded the limits of a single-disk setup. Designed for high-horsepower street and track applications, the Super Twin offers a significant increase in friction surface area to handle aggressive power delivery while maintaining a manageable pedal effort.

This kit features a multi-disk design engineered for durability and heat dissipation under heavy loads. The SS-Trim configuration specifically balances high-torque holding capacity with the drivability required for high-performance street use, making it an ideal choice for modified Z32 twin-turbo builds.

• Manufacturer Part Number: SN46SST
• Product Line: Super Twin (SS-Trim)
• Fits: 1990-1996 Nissan 300ZX Turbo (3.0L Engine)
• Multi-disk assembly for superior torque capacity
• Precision-machined billet aluminum or steel construction
• Includes high-performance friction discs and heavy-duty pressure plate

Fits 1990-2001 Nissan Skyline models equipped with the RB20 engine.

The SPEC SN43A Aluminum Flywheel is designed to replace the heavy factory component with a lightweight, high-performance alternative. By significantly reducing rotational mass and lowering the moment of inertia, this flywheel allows the RB20 engine to rev more freely, improving throttle response and acceleration through the gears. This is an essential upgrade for drivers looking to optimize engine responsiveness for both spirited street driving and track applications.

• Engineered for reduced rotational mass and faster engine acceleration
• Precision-machined aluminum construction for durability and weight savings
• Designed to maintain structural integrity under high-RPM use
• Direct replacement for the factory RB20 flywheel
• Manufacturer Part Number: SN43A

Fits select 2003-2006 Nissan 350Z and Infiniti G35 models.

The SPEC Stage 3 Clutch Kit (SN353) is a performance-oriented solution designed for high-torque street and track applications. This kit provides a significant increase in torque capacity over the original equipment, making it an ideal choice for modified VQ35DE-powered vehicles that require more aggressive engagement and higher thermal resistance.

• Manufacturer Part Number: SN353
• Series: Stage 3
• Direct fit for 2003-2006 Nissan 350Z (Base, Enthusiast, Performance, Touring, Track, and 35th Anniversary Edition)
• Direct fit for 2003-2006 Infiniti G35 (Base and X models)
• High-clamp pressure plate for improved holding power
• Carbon-graphitic friction material for enhanced durability

Fits 1989-1998 Nissan 240SX models (Base, LE, SE, XE) equipped with the SR20DET engine and rear-wheel drive transmission.

The SPEC Stage 3 Clutch Kit (SN333) is engineered for high-performance street and track applications where increased torque capacity and thermal management are critical. This assembly provides the bite necessary for modified SR20DET powerplants while maintaining the engagement characteristics required for performance driving. As a direct-fit solution for the S13 and S14 chassis utilizing the RWD SR20DET drivetrain, this kit ensures reliable power transfer under aggressive use.

• Manufacturer Part Number: SN333
• Series: Stage 3
• Application: SR20DET RWD
• Material: High-performance friction surface for increased heat capacity
• Fitment: Nissan 240SX 1989-1998 (S13/S14 Chassis)