Fits select 2004-2021 Subaru Impreza WRX STI and WRX STI models.

The ACT T1S-S05 Mod-Twin HD Street Kit is engineered for high-performance AWD street applications, bridging the gap between extreme torque capacity and daily drivability. This kit utilizes a modular design that doubles the available organic friction surfaces, providing a 700 lb-ft torque capacity while maintaining a smooth engagement and consistent pedal feel. The heart of the system is the ultra-durable sprung Mono-Drive hub, which reduces driveline shock and protects the input shaft from torsional vibration.

Every diaphragm spring undergoes an exclusive four-stage heat-treating process to ensure long-term reliability and a predictable pedal effort. The steel-backed organic friction plates offer a stable friction coefficient and high heat capacity, essential for the demands of high-powered street cars. The kit includes a CNC-machined and dynamically balanced flywheel for smooth operation across the RPM range. The Mod-Twin series is fully rebuildable, allowing for long-term serviceability without replacing the entire assembly.

• Manufacturer Part Number: T1S-S05
• Torque Capacity: 700 lb-ft
• Sprung Mono-Drive hub assembly for vibration dampening
• Exclusive four-stage heat-treated diaphragm spring
• CNC-machined and dynamically balanced flywheel
• High-quality steel-backed organic friction plates
• Includes: Pressure plate cover, diaphragm spring, friction plates, Mono-Drive hub, floater, patented Monoloc collar, release bearing, alignment tool, and pilot bearing (if required)

Fits 2008-2015 Mitsubishi Lancer Evolution GSR and Final Edition (5-speed manual transmission only).

The ACT T1S-M05 Mod-Twin 225 HD Street Kit is engineered for high-output AWD street vehicles that demand extreme torque capacity without sacrificing drivability. This modular clutch system utilizes two organic friction surfaces to provide 700 ft/lbs of torque capacity while maintaining a consistent, light pedal feel. The heart of the system is the ultra-durable spring center Mono-Drive hub, which reduces driveline shock and torsional vibration to extend the life of your input shaft.

Construction features include steel-backed organic friction plates for stable heat capacity and a diaphragm spring that undergoes an exclusive four-stage heat treating process. This fully rebuildable kit includes everything needed for a complete installation on the Evo X 5-speed platform.

• Manufacturer Part Number: T1S-M05
• Torque Capacity: 700 ft/lbs
• Mono-Drive sprung hub assembly for reduced vibration
• CNC-machined and dynamically balanced flywheel
• High-quality organic friction materials for smooth engagement
• Patented Monoloc Collar for secure release bearing attachment
• Kit includes: Pressure plate, flywheel, friction plates, Mono-Drive hub, release bearing, alignment tool, and pilot bearing (where applicable)

Fits 2003-2006 Mitsubishi Lancer Evolution (Evolution, MR, RS, SE) equipped with 5-speed transmissions.

The ACT T1S-M01 Mod-Twin 225 HD Sprung Street Kit is engineered for high-output AWD street applications, providing a 700 ft/lbs torque capacity without compromising pedal feel or engagement quality. This modular system utilizes a dual organic friction surface design paired with an ultra-durable spring center Mono-Drive hub. By distributing torque through the Mono-Drive sprung assembly, this kit significantly reduces driveline shock and protects the input shaft from torsional vibrations.

Durability is ensured through an exclusive four-stage heat-treating process on the diaphragm spring, maintaining a consistent, light pedal feel even under heavy use. The steel-backed friction plates feature high-quality organic materials for stable friction coefficients and excellent heat capacity. This kit is fully rebuildable, and individual components can be serviced separately.

• Torque Capacity: 700 ft/lbs
• Hub Design: Sprung Mono-Drive
• Clutch Type: Modular Twin Disc
• Materials: Steel-backed organic friction plates
• Compatibility: 5-speed models only
• Manufacturer Part Number: T1S-M01

Kit Includes: CNC-machined dynamically balanced flywheel, pressure plate cover, diaphragm spring, Mono-Drive hub assembly, organic friction plates, floater, patented Monoloc collar, release bearing, alignment tool, and pilot bearing.

Fits select 1997-2015 Chevrolet Corvette, Chevrolet Camaro, Pontiac Firebird, and Pontiac GTO models.

The ACT T1S-G05 Twin Disc HD Street Kit provides twice the disc surface area compared to standard single-disc setups, delivering superior wear resistance and significantly higher heat capacity for high-performance street use. This kit features ACT’s proprietary Positive Lift Floater System, designed to eliminate floater rattle and ensure quiet operation while preventing post wear.

Built for durability, the Performance street rigid-hub discs utilize premium organic materials with a high copper content for optimized heat transfer. The steel-backed linings offer increased burst strength, and the chrome-moly hub is heat-treated for maximum longevity. Every diaphragm undergoes a specialized four-stage heat-treating process to maintain consistent pedal feel and engagement over time.

• Manufacturer Part Number: T1S-G05
• Positive Lift Floater System: Prevents rattle and provides equal disc disengagement
• Construction: CNC-machined and dynamically balanced flywheel
• Materials: High-copper organic friction surfaces with steel-backed linings
• Adjustability: Engineered to compensate for disc wear to maintain performance
• Included Hardware: Pressure plate, two discs, floater, flywheel, and alignment tool

Fits select 1997-2015 Chevrolet Corvette, Camaro, Trailblazer SS, and Pontiac GTO (V8 models).

The ACT T1S-G01 Twin Disc HD Street Kit offers double the disc surface area of a single-disc setup, providing significantly improved wear resistance and heat capacity for high-performance street applications. This kit features ACT’s proprietary Positive Lift Floater System, which ensures quiet operation by eliminating floater rattle and preventing post wear. Every diaphragm undergoes an exclusive four-stage heat-treating process for consistent pedal feel and long-term durability.

Designed for strength, the performance street rigid-hub discs utilize premium steel-backed organic linings with high copper content to optimize heat transfer and burst strength. The chrome-moly hub is heat-treated for maximum durability, while the CNC-machined flywheel is dynamically balanced to provide a smooth, trouble-free installation and vibration-free operation.

• Manufacturer Part Number: T1S-G01
• Dual-disc design for increased torque capacity and thermal stability
• Positive Lift Floater System for quiet, rattle-free operation
• Rigid-hub discs with steel-backed organic friction material
• Heat-treated chrome-moly hub and four-stage heat-treated diaphragms
• CNC-machined and dynamically balanced flywheel included

What's Included: Heavy-duty pressure plate, two rigid-hub street discs, floater plate, flywheel, and alignment tool. (Note: Some applications may include a pilot bearing and release bearing).

Fits 2008-2021 Dodge Challenger R/T, SRT8, Scat Pack, and SRT Hellcat.

The ACT T1S-D03 Twin Disc HD Street Clutch Kit provides more than double the friction surface area of a standard single-disc setup, delivering significantly higher heat capacity and extended service life for high-output street applications. This kit features ACT's proprietary Positive Lift Floater System, which eliminates floater rattle and prevents post wear for quiet, reliable operation. Every diaphragm undergoes an exclusive four-stage heat-treating process to ensure consistent pedal feel and long-term durability.

The performance street rigid-hub discs utilize premium organic friction materials infused with high copper content to optimize heat transfer. Steel-backed linings increase burst strength, while the heat-treated chrome-moly hub provides the structural integrity needed for aggressive use. This complete kit includes a CNC-machined, dynamically balanced flywheel to ensure a vibration-free installation and smooth engine response.

• Manufacturer Part Number: T1S-D03
• Design: Twin-disc with Positive Lift Floater System for quiet operation
• Disc Material: Premium copper-infused organic with steel backing
• Hub Construction: Heat-treated chrome-moly steel
• Flywheel: CNC-machined and dynamically balanced
• Adjustment: Built-in wear compensation for equal disc disengagement
• Includes: Pressure plate, two discs, floater, flywheel, and alignment tool

Fits select 2004-2021 Subaru Impreza WRX STI and WRX STI models.

The ACT T1R-S05 Mod-Twin 225 HD Sprung Race Kit is engineered specifically for high-powered AWD applications requiring aggressive launches and rapid shifting. This modular clutch system features two 225mm ceramic friction surfaces and an ultra-durable Mono-Drive sprung hub assembly designed to handle up to 895 ft/lbs of torque. Please note: This kit is designed for track and competition applications and is not for street use.

Each kit utilizes a diaphragm spring that undergoes a proprietary four-stage heat-treating process to ensure a consistent, light pedal feel without sacrificing clamping force. The puck-style ceramic friction plates offer a high friction coefficient and superior heat capacity for extended life under racing conditions. The Mono-Drive hub assembly helps protect the transmission by reducing driveline shock and torsional vibration. This system is fully rebuildable, with individual components available separately for long-term serviceability.

• Torque Capacity: 895 ft/lbs
• Series: Mod-Twin 225 HD Sprung Race
• Construction: Sprung Mono-Drive hub with ceramic puck-style friction plates
• Includes: CNC-machined balanced flywheel, pressure plate, diaphragm spring, ceramic friction plates, Mono-Drive hub, patented Monoloc collar, release bearing, alignment tool, and pilot bearing (if required)
• Manufacturer Part Number: T1R-S05

Fits 1997-2015 Chevrolet Corvette, Camaro SS/Z28, Trailblazer SS, and Pontiac GTO.

The ACT T1R-G01 Twin Disc HD Race Kit provides twice the friction surface area of a standard single-disc setup, delivering superior heat capacity and extended wear life for high-performance racing applications. This kit utilizes a proprietary Positive Lift Floater System, which ensures quiet operation by eliminating floater rattle and preventing post wear. To maintain consistent performance under extreme conditions, all diaphragms undergo an exclusive four-stage heat-treating process.

The 6-pad rigid race discs are engineered with high-quality ceramic friction materials and paired with a heat-treated chrome-moly hub for maximum durability. For smooth installation and vibration-free operation, ACT includes a CNC-machined, dynamically balanced flywheel. This system is designed for quick shifts and reliable service in demanding environments.

• Manufacturer Part Number: T1R-G01
• Disc Type: Twin 6-pad rigid ceramic race discs
• Hub Material: Heat-treated chrome-moly
• Floater System: Positive Lift design for quiet engagement
• Flywheel: CNC-machined and dynamically balanced
• Hardware Included: Pressure plate, two discs, floater, flywheel, and alignment tool

Fits select 1988-2003 Toyota (Camry, Celica, MR2, RAV4, Solara) and Lexus (ES250, ES300) models. See the fitment table below for specific submodels and engine compatibility.

The ACT T023 Heavy Duty pressure plate is engineered to provide increased clamping force while maintaining consistent pedal feel. This unit features a proprietary diaphragm design that significantly increases clamp load by 20 to 50 percent compared to factory specifications. To ensure durability under high-performance conditions, every diaphragm undergoes a specialized four-stage heat-treating process. The precision-stamped cover provides the rigidity needed for uniform pressure distribution and reduced deflection during high-RPM shifts.

• Part Number: T023
• Clamp Load Increase: 20% to 50%
• Construction: Precision-stamped cover with heat-treated diaphragm
• Application: Recommended for use with street or race discs
• Maximized clutch life and reduced deflection

Fits select 1981-2005 Lexus IS300, SC300 and Toyota 4Runner, Supra, Tacoma, Pickup, Celica Supra, and Cressida models. Check the compatibility table below for specific engine and trim fitment.

The ACT T021X Xtreme pressure plate is engineered for high-performance street or race applications where increased torque capacity is required. By utilizing an exclusive diaphragm design, ACT increases clamp load by 50 to 120 percent compared to OE units while maintaining a consistent pedal feel. Each diaphragm undergoes a rigorous four-stage heat-treating process to ensure long-term durability and resistance to deflection under high-load conditions.

Constructed with precision cover stampings, this pressure plate provides the rigidity and consistency needed for precise clutch engagement and maximum service life. It is designed to work seamlessly with both street and race-specific clutch discs.

• Manufacturer Part Number: T021X
• Clamp Load Increase: 50% to 120%
• Diaphragm Material: 4-stage heat-treated steel
• Design: Precision cover stampings for maximum rigidity
• Application: Recommended for street or race disc use

Fits select 1991-2009 Subaru Baja Turbo, Forester XT, Impreza WRX, and Legacy models. The ACT SB9-XTSS Xtreme/Performance Street Sprung Clutch Kit is engineered for high-performance street use, providing a significant increase in clamp load while maintaining the driveability required for a daily-driven vehicle.

This kit features ACT's Xtreme pressure plate, which utilizes a proprietary four-stage heat-treated diaphragm to maximize clamp force and reduce deflection. The Performance Street disc uses premium organic friction material with high copper content for superior heat dissipation and steel-backed linings for high burst strength. To ensure reliable engagement, this kit includes the Monoloc one-piece wedge collar, machined from hardened chrome-moly steel to replace failure-prone factory two-piece designs.

• Manufacturer Part Number: SB9-XTSS
• Pressure Plate: Xtreme (XT) for increased clamp load and pedal feel
• Clutch Disc: Performance Street Sprung (SS) with high-copper organic friction
• Monoloc Collar: One-piece chrome-moly design for pull-type systems
• Construction: Steel-backed linings and reduced marcel for faster shifts
• Reliability: Precision-stamped cover and heat-treated diaphragm for consistent performance

Fits select 1991-2009 Saab 9-2X and Subaru Baja, Forester, Impreza, and Legacy models.

The ACT SB9-HDSS Heavy Duty Performance Street clutch kit is engineered for drivers seeking increased torque capacity and improved engagement feel without sacrificing streetability. This kit pairs ACT's Heavy Duty pressure plate with their most popular Performance Street sprung disc, providing a significant upgrade over the factory unit for tuned street applications.

The Heavy Duty pressure plate features a proprietary diaphragm design subjected to a four-stage heat-treating process, ensuring consistent pedal feel and maximum service life. To solve common issues with pull-type clutches, this kit includes the ACT Monoloc—a one-piece, hardened chrome-moly steel wedge collar that replaces the standard two-piece design to ensure secure bearing engagement and proper alignment regardless of driving style.

• Heavy Duty Pressure Plate: Precision-stamped cover for high rigidity and increased clamp load.
• Performance Street Disc: High copper content organic lining with steel backing for superior heat transfer and burst strength.
• Reduced Marcel: Enables faster shift action to complement high-performance driving.
• Monoloc Collar: CNC-machined chrome-moly construction prevents wedge collar failure in pull-type systems.
• Manufacturer Part Number: SB9-HDSS

Fits select 1991-2009 Subaru Baja, Forester, Impreza, and Legacy models, and the 2005 Saab 9-2X Aero. This ACT Heavy Duty (HD-M) Race Sprung 6-Pad Clutch Kit is designed for enthusiasts who demand faster shifting and increased torque capacity for high-performance applications.

The SB9-HDG6 kit includes a Heavy Duty pressure plate featuring an exclusive heat-treated diaphragm design. This four-stage heat-treating process increases clamp load while reducing deflection for consistent pedal feel and maximized clutch life. Precision cover stampings ensure the rigidity needed for aggressive driving conditions.

The 6-pad spring-centered race disc is built with a spring-center construction that effectively damps torsional vibrations. The design utilizes wraparound spring windows and thicker retainer stampings to increase strength and reliability under harsh stress. While engagement is significantly harsher than a street-spec disc, the reduced mass allows for much faster gear changes.

This kit also features the Monoloc collar, a one-piece hardened Chrome-moly steel upgrade to the standard two-piece wedge collar. It provides uniform loading on the release bearing to ensure proper alignment and service life in pull-type clutch systems.

• Manufacturer Part Number: SB9-HDG6
• Pressure Plate Type: Heavy Duty
• Disc Style: 6-Pad Spring-Centered Race Disc
• Material: Hardened Chrome-moly steel Monoloc collar
• Features: Four-stage heat-treated diaphragm, wraparound spring windows
• Warranty: Manufacturer one-year warranty

Fits select 2013-2020 Scion FR-S, Subaru BRZ, and Toyota 86 models.

The ACT SB8-XTSS Xtreme Performance Street Sprung Clutch Kit is engineered for drivers who require increased torque capacity and improved shift response without sacrificing street drivability. This kit pairs ACT’s Xtreme pressure plate with a Performance Street sprung-hub disc to deliver a significant increase in clamp load and durability over the factory setup.

The Xtreme pressure plate utilizes a proprietary diaphragm design that undergoes a four-stage heat-treating process for consistent performance and reduced deflection. Precision cover stampings provide the rigidity needed for high-performance applications. The Performance Street disc is manufactured with premium organic friction materials containing high copper content for superior heat transfer, while its steel-backed lining provides enhanced burst strength. A reduced marcel design enables faster shift action to complement the increased clamp load of the pressure plate.

• Manufacturer Part Number: SB8-XTSS
• Includes ACT Xtreme pressure plate for increased clamp load and reduced deflection
• Performance Street sprung disc with premium organic, high-copper friction material
• Steel-backed lining for increased burst strength and high-RPM durability
• Diaphragms endure a four-stage heat-treating process for maximum longevity
• Reduced marcel for faster engagement and shift speeds
• Quiet operation with increased strength and reliability

Fits select 2013-2020 Scion FR-S, Subaru BRZ, and Toyota 86.

The ACT SB8-XTG6 Xtreme Race clutch kit is designed for high-performance applications that demand significant clamp load and faster shifting. At the core of this kit is the ACT Xtreme pressure plate, which utilizes an exclusive diaphragm design and a four-stage heat-treating process to maximize clutch life and minimize deflection. Precision cover stampings provide the rigidity needed for consistent engagement under heavy load.

The included 6-pad spring-centered race disc is built to handle the high heat levels associated with larger clutch sizes. It features a spring-centered hub to damp torsional vibrations, paired with wraparound spring windows and thickened retainer stampings for increased strength and reliability. While engagement is more aggressive than a street disc, the ceramic friction material allows for rapid gear changes and superior durability on the track.

• Manufacturer Part Number: SB8-XTG6
• Pressure Plate: ACT Xtreme for maximum clamp load and reduced deflection
• Clutch Disc: 6-pad ceramic race disc with spring-centered hub
• Construction: Precision cover stampings with heavy-duty spring retainers
• Thermal Capacity: High heat absorption for demanding racing conditions
• Warranty: Manufacturer one-year warranty

The ACT SB8-HDSS kit is engineered for drivers seeking a significant upgrade in torque capacity and durability without sacrificing daily street drivability. This kit combines ACT's most popular Heavy Duty pressure plate with a Performance Street sprung disc, providing a firm but manageable pedal feel and crisp engagement. It is an ideal solution for modified naturally aspirated or lightly forced induction 2.0L Boxer engines.

Fits 2013-2020 Scion FR-S, Subaru BRZ, and Toyota 86 models.

• Heavy Duty Pressure Plate: Features an exclusive four-stage heat-treated diaphragm design to increase clamp load, reduce deflection, and maximize service life.
• Performance Street Disc: Formulated with premium organic materials and high copper content for superior heat transfer and a steel-backed lining for high burst strength.
• Faster Shifting: Reduced marcel design allows for quicker shift action to complement the increased rigidity of the precision-stamped cover.
• Spring-Centered Construction: Reduces driveline shock and vibration for smoother operation compared to unsprung discs.
• Manufacturer Part Number: SB8-HDSS

Fits 2013-2020 Scion FR-S, Subaru BRZ, and Toyota 86.

The ACT SB8-HDG6 clutch kit is engineered for high-performance and racing applications where rapid shifting and increased heat capacity are required. This kit pairs ACT's Heavy Duty (HD) pressure plate with a 6-pad spring-centered race disc, providing a significant increase in clamp load while reducing deflection during high-RPM operation.

• Heavy Duty Pressure Plate: Utilizes a four-stage heat-treated diaphragm and precision cover stampings to provide rigidity and consistency while maximizing clamp load.
• 6-Pad Spring-Centered Race Disc: Features wraparound spring windows and thicker retainer stampings to damp torsional vibrations and resist failure under harsh racing conditions.
• Performance Characteristics: Designed for faster shifting and superior heat absorption compared to street discs; provides aggressive engagement suitable for track use.
• MPN: SB8-HDG6

Fits 2013-2020 Scion FR-S, Subaru BRZ, and Toyota 86 models.

The ACT SB7-XTSS clutch kit is engineered for the demanding driver, combining the high-clamp Xtreme pressure plate with a Performance Street Sprung disc. This setup provides a significant increase in torque capacity and clamp load while maintaining the engagement characteristics required for daily street use and spirited driving.

The Xtreme pressure plate utilizes a proprietary diaphragm design that undergoes a rigorous four-stage heat-treating process to reduce deflection and maximize service life. Precision cover stampings ensure consistent performance and structural rigidity. Paired with this is the Performance Street disc, which features premium organic friction material with high copper content for superior heat dissipation and steel-backed linings for high-RPM burst strength. The reduced marcel design enables faster shift action to complement the increased pressure plate clamp load.

• Manufacturer Part Number: SB7-XTSS
• Xtreme pressure plate offers increased clamp load and reduced deflection
• Performance street sprung disc with high copper organic material for heat transfer
• Steel-backed linings for enhanced durability and burst strength
• Four-stage heat-treated diaphragm for long-term consistency
• Reduced marcel design allows for quicker gear changes
• Quiet operation with significantly improved reliability over OE components

Fits 2013-2020 Scion FR-S, Subaru BRZ, and Toyota 86 models.

The ACT SB7-HDSS kit is engineered for drivers seeking a performance upgrade that balances increased clamp load with smooth street drivability. This kit pairs the ACT Heavy Duty pressure plate with a Performance Street sprung disc, providing a more robust alternative to the factory clutch assembly for spirited driving or light track use.

The Heavy Duty pressure plate utilizes an exclusive diaphragm design to maximize clutch life and reduce deflection under load. Each diaphragm undergoes a specialized four-stage heat-treating process for consistent performance, while precision-stamped covers ensure structural rigidity. To complement the pressure plate, the Performance Street disc is constructed with premium organic materials featuring high copper content for efficient heat transfer. Steel-backed linings increase burst strength, and a reduced marcel design allows for faster shift action and improved reliability.

• Manufacturer Part Number: SB7-HDSS
• Heavy Duty pressure plate with exclusive heat-treated diaphragm
• Performance Street sprung disc with high-copper organic friction material
• Steel-backed lining for enhanced burst strength and durability
• Precision-stamped cover for maximum consistency and rigidity
• Reduced marcel design for quicker shifting
• One-year manufacturer warranty

Fits 2013-2020 Subaru BRZ, Toyota 86, and Scion FR-S.

The ACT SB7-HDG6 Heavy Duty Race clutch kit is engineered for drivers who prioritize fast shifting and high heat capacity. This kit centers on ACT's Heavy Duty pressure plate, which utilizes an exclusive diaphragm design and a four-stage heat-treating process to increase clamp load and reduce deflection. Precision cover stampings provide the necessary rigidity and consistency for high-performance use.

The 6-pad, spring-centered race disc is designed to absorb significant heat while dampening torsional vibrations to resist failure under harsh track conditions. The spring retainers feature wraparound spring windows and thicker retainer stampings, providing superior spring support and reducing stress concentrations for improved reliability.

• Manufacturer Part Number: SB7-HDG6
• Pressure Plate: Heavy Duty (HD) for increased clamp load
• Disc Style: 6-pad sprung race disc for fast engagement and heat management
• Diaphragm: Four-stage heat-treated for consistent performance
• Construction: Precision-stamped cover and thick retainer stampings
• Engagement: Harsher race-spec engagement with reduced shifting times

Fits select 2005-2018 Subaru WRX, Impreza, Legacy, Forester, and Outback, and 2006 Saab 9-2X Aero.

The ACT SB5-HDSS kit is a premier drivetrain upgrade designed for performance-oriented street vehicles. It combines ACT’s Heavy Duty pressure plate with their most popular Performance Street sprung disc to increase clamp load and torque capacity while maintaining excellent drivability. This setup is ideal for modified cars requiring more holding power than an OE clutch can provide.

The Heavy Duty pressure plate utilizes an exclusive diaphragm design to maximize clutch life and reduce deflection. Every diaphragm undergoes a specialized four-stage heat-treating process for consistent performance. The Performance Street disc features a high copper content in its organic friction material to improve heat transfer, supported by a steel-backed lining for increased burst strength and durability. Reduced marcel enables faster shift action to complement the increased rigidity of the precision-stamped cover.

• Manufacturer Part Number: SB5-HDSS
• Clutch Disc: Performance Street Sprung with copper-rich organic material
• Pressure Plate: Heavy Duty with precision cover stampings
• Diaphragm: Four-stage heat-treated for high-heat reliability
• Construction: Steel-backed lining for maximum burst strength
• Drivability: Reduced marcel for faster, more responsive shifting

Fits select 2005-2018 Subaru WRX, Impreza, Legacy, Outback, Forester, Baja, and 2006 Saab 9-2X Aero. This ACT SB5-HDG6 kit is engineered for high-stress race applications where faster shifting and increased heat capacity are required.

At the core of this kit is the ACT Heavy Duty pressure plate, featuring an exclusive diaphragm design that increases clamp load while reducing deflection for maximized clutch life. Each diaphragm undergoes a rigorous four-stage heat-treating process, ensuring consistent performance under extreme thermal loads. The precision-stamped cover provides the rigidity needed for reliable, high-RPM engagement.

The included 6-pad spring-centered race disc is designed to damp torsional vibrations and resist mechanical failure. ACT utilizes wraparound spring windows and thicker retainer stampings to increase strength and reduce stress concentrations. While engagement is harsher than a street-spec disc, the 6-pad ceramic design enables rapid shifting and manages the heat generated by larger high-performance clutch setups.

• Manufacturer Part Number: SB5-HDG6
• Pressure Plate: Heavy Duty diaphragm design with precision cover stampings
• Disc Style: 6-Pad Spring-Centered Race Disc
• Heat-treated diaphragms for unparalleled durability
• Increased clamp load and reduced deflection
• Includes all necessary components for a complete clutch replacement
• Backed by a one-year manufacturer warranty

Fits select 1990-2023 Subaru (Impreza, Legacy, Forester, Outback, Baja, Crosstrek) and Saab (9-2X) models.

The ACT SB2-HDSS clutch kit is engineered for drivers who require a significant increase in clamp load and torque capacity without sacrificing daily streetability. This kit pairs the ACT Heavy Duty pressure plate with a Performance Street sprung disc, providing a firmer pedal feel and improved engagement for spirited driving and light track use. By utilizing a steel-backed lining with high copper content, this kit offers superior heat transfer and burst strength compared to standard OE components.

• Heavy Duty Pressure Plate: Features an exclusive diaphragm design that increases clamp load while reducing deflection for maximum clutch life.
• Four-Stage Heat Treatment: All diaphragms undergo a rigorous heat-treating process to ensure unparalleled performance and consistency.
• Performance Street Disc: Constructed with premium organic materials and a reduced marcel design for faster shift action.
• Precision Engineering: Heavy-duty cover stampings provide the rigidity needed for consistent performance under load.
• Spring-Centered Hub: Dampens driveline vibrations for smoother operation on the street.
• Manufacturer Part Number: SB2-HDSS

Fits 2013-2020 Subaru BRZ, 2013-2016 Scion FR-S, and 2017-2020 Toyota 86.

The ACT SB13-HDSS kit is a premium drivetrain upgrade engineered for drivers who require increased torque capacity without sacrificing the smooth engagement of a daily-driven vehicle. This kit combines ACT's Heavy Duty pressure plate with their most popular Performance Street sprung-hub disc, balancing a firm pedal feel with excellent street driveability.

The Heavy Duty pressure plate utilizes an exclusive diaphragm design to increase clamp load and reduce deflection. Each diaphragm undergoes a specialized four-stage heat-treating process to ensure consistent performance and longevity. The assembly is housed in a precision-stamped cover, providing the rigidity necessary for high-performance use. The Performance Street disc features premium organic friction materials with high copper content for improved heat transfer and steel-backed linings for superior burst strength. A reduced marcel design facilitates faster shift action to complement the increased clamp load.

• Manufacturer Part Number: SB13-HDSS
• Pressure Plate Type: Heavy Duty
• Disc Type: Performance Street Sprung
• Material: High-copper organic friction surface with steel-backed lining
• Features: Four-stage heat-treated diaphragm and precision-stamped cover
• Warranty: Manufacturer one-year warranty

Fits 2013-2020 Subaru BRZ, Scion FR-S, and Toyota 86. The ACT SB13-HDG6 Heavy Duty race clutch kit is engineered for high-performance driving where increased clamp load and high heat capacity are required. By utilizing a 6-pad ceramic race disc with a spring-centered hub, this kit significantly reduces shifting times while providing the torsional damping needed to protect your drivetrain under harsh conditions.

The Heavy Duty pressure plate features an exclusive diaphragm design that undergoes a proprietary four-stage heat-treating process, ensuring consistent pedal feel and long-term durability. Precision cover stampings provide the necessary rigidity to reduce deflection, while the disc’s wraparound spring windows and thicker retainer stampings increase strength and reliability for race applications.

• Exclusive diaphragm design increases clamp load and reduces deflection
• 6-pad ceramic race disc offers high heat capacity and fast engagement
• Spring-centered hub damps torsional vibrations to resist failure
• Wraparound spring windows and heavy-duty retainers for added strength
• Precision-stamped pressure plate cover for maximum consistency
• Manufacturer Part Number: SB13-HDG6
• One-year manufacturer warranty included

Fits select 2005-2025 Subaru WRX, Impreza WRX, Legacy GT, Outback XT, Forester XT, and Baja Turbo models.

The ACT SB11-XTSS clutch kit is engineered for the demanding driver, combining an Xtreme pressure plate with a Performance Street sprung disc. This setup provides a significant increase in clamp load and torque capacity while maintaining the smooth engagement required for street use.

• Manufacturer Part Number: SB11-XTSS
• Pressure Plate: Xtreme heavy-duty diaphragm design for maximum clamp load and reduced deflection.
• Clutch Disc: Performance Street Sprung with premium organic friction material and high copper content for superior heat transfer.
• Durability: Steel-backed linings offer high burst strength, and all diaphragms undergo a four-stage heat-treating process.
• Shift Feel: Reduced marcel design enables faster shift action to complement the high-rigidity cover stamping.
• Operation: Quiet operation with increased reliability over OE components.

This kit includes a precision-stamped cover for consistent performance and rigidity. The Performance Street disc is ACT's most popular choice, offering a balance of high-performance handling and daily drivability.

Fits select 2005-2025 Subaru Baja, Forester, Impreza WRX, Legacy, Outback, and WRX models. The ACT SB11-XTG6 Xtreme race clutch kit is engineered for high-performance applications where faster shifting and high heat capacity are required.

This kit features an ACT Xtreme pressure plate, utilizing an exclusive four-stage heat-treated diaphragm design to significantly increase clamp load while reducing deflection. The precision-stamped cover provides the rigidity needed for consistent engagement and extended clutch life. Paired with a 6-pad spring-centered race disc, this setup utilizes a sprung hub to damp torsional vibrations and resist failure under harsh racing conditions.

The race disc is built with wraparound spring windows and thicker retainer stampings for superior spring support and reduced stress concentrations. While engagement is notably harsher than stock, the 6-pad design allows for quicker shifts and is specifically recommended for larger clutch sizes to better absorb and dissipate heat.

• Manufacturer Part Number: SB11-XTG6
• Pressure Plate Type: Xtreme
• Disc Type: 6-Pad Race Disc (Spring Centered)
• Increased clamp load and reduced deflection
• Four-stage heat-treated diaphragm for durability
• Sprung hub construction for vibration damping
• Thick retainer stampings for increased strength

Fits select 2005-2025 Subaru Baja, Forester, Impreza, Legacy, Outback, and WRX models. The ACT SB11-HDSS kit combines the Heavy Duty pressure plate with a Performance Street sprung disc to provide a significant increase in clamp load and torque capacity without sacrificing drivability.

The ACT Heavy Duty pressure plate utilizes an exclusive diaphragm design that undergoes a rigorous four-stage heat-treating process to ensure consistent performance and reduced deflection. Precision cover stampings provide the rigidity needed for high-stress applications. The included Performance Street disc is engineered with premium organic friction materials containing high copper content for superior heat transfer and a steel-backed lining for increased burst strength. A reduced marcel design enables faster shift action, while the sprung hub provides dampening to protect the drivetrain.

• Manufacturer Part Number: SB11-HDSS
• Pressure Plate Type: Heavy Duty for increased clamp load and longevity
• Disc Type: Performance Street Sprung with high-copper organic lining
• Steel-backed linings for improved durability and heat dissipation
• Four-stage heat-treated diaphragm for maximum performance and reliability
• Designed for 5-speed manual transmission applications

Fits select 2005-2025 Subaru Baja, Forester, Impreza, Legacy, Outback, and WRX models.

The ACT SB11-HDG6 clutch kit is engineered for high-performance and race applications where rapid shifting and superior heat capacity are essential. This kit centers around the ACT Heavy Duty pressure plate, which utilize an exclusive diaphragm design to increase clamp load and reduce deflection. Every diaphragm undergoes a specialized four-stage heat-treating process, while precision cover stampings ensure maximum rigidity and consistent engagement throughout the life of the clutch.

Paired with the HD pressure plate is ACT’s 6-pad, spring-centered race disc. Designed to properly damp torsional vibrations and resist failure under harsh track conditions, this disc features wraparound spring windows and thicker retainer stampings for increased strength. While engagement is significantly harsher than a standard street disc, the 6-pad design allows for faster gear changes and can absorb higher heat loads in larger clutch sizes.

• Manufacturer Part Number: SB11-HDG6
• Pressure Plate Type: Heavy Duty
• Disc Type: 6-Pad Spring-Centered Race Disc
• Heat-treated diaphragm for long-term durability
• Increased clamp load over factory components
• Recommended for race use where faster shifting is prioritized

Fits select 2004-2021 Subaru Impreza WRX STI, WRX STI, and Legacy GT spec.B models.

The ACT SB10-XTSS Xtreme Performance Street Sprung Clutch Kit is engineered for high-performance street use where increased torque capacity and durability are required. This kit centers around the Xtreme pressure plate, which utilizes an exclusive diaphragm design and a four-stage heat-treating process to significantly increase clamp load while reducing deflection. The precision-stamped cover provides the rigidity needed for consistent engagement under demanding driving conditions.

Paired with ACT's Performance street disc, this setup features a premium organic friction material with a high copper content for superior heat transfer and a steel-backed lining for exceptional burst strength. The disc is designed with a reduced marcel to enable faster shift action, while the sprung hub absorbs driveline vibrations for quieter operation.

This kit also includes the ACT Monoloc, a one-piece chrome-moly steel wedge collar that replaces the standard two-piece OEM design. This upgrade ensures uniform loading on the bearing and pressure plate, preventing common pull-type clutch release issues.

• Manufacturer Part Number: SB10-XTSS
• Pressure Plate: Xtreme heavy-duty diaphragm design
• Disc Type: Performance Street Sprung (Organic)
• Material: High-copper organic lining with steel backing
• Hardware Included: Monoloc one-piece wedge collar (Hardened Chrome-Moly)
• Operation: Reduced marcel for faster shifting and quiet performance