Description
ACT Clutch Kit – 2005-2012 Subaru Legacy 2.5GT / 2006-2008 Subaru Forester & Outback / 2006-2018 Subaru Impreza WRX
ACT clutch kits combine an application-specific pressure plate and matched disc. Choose by torque requirement, engagement preference, street/track use, and tolerance for drivetrain noise.
Which option should I choose?
The table below uses the rating/specification supplied for each exact ACT SKU where available. We do not copy a torque rating from a different vehicle application.
| Configuration | Application-Specific Ratings & Specs | Driver Guidance |
|---|---|---|
|
Pressure Plate: Heavy Duty | Disc: Performance Street Sprung ACTSB5-HDSS |
Torque capacity: 420 ft-lb • Capacity over OE: 32% • Disc material: Organic • Disc diameter: 9 in / 228 mm • Input shaft: 1 • Pressure plate: Heavy Duty • Feel: Light to moderate pedal effort, smooth positive engagement, OE to mild gear rattle • Recommended use: Recommended for street and race use | Smoothest engagement; preferred for primarily street-driven vehicles. Sprung hub adds driveline damping and street tolerance. |
|
Pressure Plate: Heavy Duty | Disc: 6-Pad Race Rigid ACTSB5-HDR6 |
Torque capacity: 535 ft-lb • Capacity over OE: 69% • Disc material: Ceramic • Disc diameter: 9 in / 228 mm • Input shaft: 1 • Pressure plate: Heavy Duty • Feel: Light to moderate pedal effort, aggressive engagement, increased gear rattle • Recommended use: Recommended for race use only | Aggressive race engagement, with more modulation than a 4-pad disc. Rigid hub gives direct response with greater drivetrain shock/noise. |
|
Pressure Plate: Heavy Duty | Disc: 4-Pad Race Rigid ACTSB5-HDR4 |
Torque capacity: 535 ft-lb • Capacity over OE: 69% • Disc material: Ceramic • Disc diameter: 9 in / 228 mm • Input shaft: 1 • Pressure plate: Heavy Duty • Feel: Light to moderate pedal effort, aggressive engagement, increased gear rattle • Recommended use: Recommended for race use only | Most aggressive puck-style engagement; competition-focused. Rigid hub gives direct response with greater drivetrain shock/noise. |
|
Pressure Plate: Heavy Duty | Disc: 6-Pad Race Sprung ACTSB5-HDG6 |
Torque capacity: 535 ft-lb • Capacity over OE: 69% • Disc material: Ceramic • Disc diameter: 9 in / 228 mm • Input shaft: 1 • Pressure plate: Heavy Duty • Feel: Light to moderate pedal effort, aggressive engagement, OE to mild gear rattle • Recommended use: Recommended for high horsepower street or race use | Aggressive race engagement, with more modulation than a 4-pad disc. Sprung hub adds driveline damping and street tolerance. |
|
Pressure Plate: Heavy Duty | Disc: 4-Pad Race Sprung ACTSB5-HDG4 |
Torque capacity: 535 ft-lb • Capacity over OE: 69% • Disc material: Ceramic • Disc diameter: 9 in / 228 mm • Input shaft: 1 • Pressure plate: Heavy Duty • Feel: Light to moderate pedal effort, aggressive engagement, OE to mild gear rattle • Recommended use: Recommended for high horsepower street or race use | Most aggressive puck-style engagement; competition-focused. Sprung hub adds driveline damping and street tolerance. |
Configuration Details
Pressure Plate: Heavy Duty | Disc: Performance Street Sprung (ACTSB5-HDSS)
Specifications Item Description ACT Heavy Duty Performance Street Sprung Clutch Kit Product Weight (lbs.) 14.5 Torque Capacity (ft/lbs.) 420 Â Torque Capacity Over OE 32% Disc Material Organic Clutch Disc Diameter (Inches) 9 Clutch Disc Diameter (Millimeters) 228 Input Shaft Diameter (inches) 1 Pressure Plate Type Heavy Duty Warranty 12 Months ( view details ) SB5-HDSS kit features ACT's most popular Heavy Duty pressure plate and most popular street disc. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's Performance Street discs feature premium organic materials with high copper content for better heat transfer and steel-backed lining for greater burst strength and durability. These discs have reduced marcel for faster shift act
Pressure Plate: Heavy Duty | Disc: 6-Pad Race Rigid (ACTSB5-HDR6)
Notes: This product is applicable for the following applications, 2005-2012 Subaru Legacy 2.5GT / Spec.B 2006-2008 Subaru Forester & Outback 2006-2018 Subaru Impreza WRX Item Description ACT Heavy Duty Race Rigid 6 Pad Clutch Kit Product Weight (lbs.) 13.5 Torque Capacity (ft/lbs.) 535 Torque Capacity Over OE 69% Disc Material Ceramic Clutch Disc Diameter (Inches) 9 Clutch Disc Diameter (Millimeters) 228 Input Shaft Diameter (inches) 1 Pressure Plate Type Heavy Duty Warranty 12 Months ( view details ) Description SB5-HDR6 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 6-pad rigid race discs are made with high quality, ceramic friction materials. The chrome-moly hub is
Pressure Plate: Heavy Duty | Disc: 4-Pad Race Rigid (ACTSB5-HDR4)
Notes: This product is applicable for the following applications, 2005-2012 Subaru Legacy 2.5GT/Spec.B 2006-2008 Subaru Forester & Outback 2006-2018 Subaru Impreza WRX Specifications Item Description ACT Heavy Duty Race Rigid 4 Pad Clutch Kit Product Weight (lbs.) 13.0 Torque Capacity (ft/lbs.) 535 Torque Capacity Over OE 69% Disc Material Ceramic Clutch Disc Diameter (Inches) 9 Clutch Disc Diameter (Millimeters) 228 Input Shaft Diameter (inches) 1 Pressure Plate Type Heavy Duty Warranty 12 Months ( view details ) Description SB5-HDR4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad rigid race discs are made with high quality, ceramic friction materials. The chrom
Pressure Plate: Heavy Duty | Disc: 6-Pad Race Sprung (ACTSB5-HDG6)
Notes: This product is applicable for the following applications, 2005-2012 Subaru Legacy 2.5GT / Spec.B 2006-2008 Subaru Forester & Outback 2006-2018 Subaru Impreza WRX Specifications Item Description ACT Heavy Duty Race Sprung 6 Pad Clutch Kit Product Weight (lbs.) 14.9 Torque Capacity (ft/lbs.) 535 Â Torque Capacity Over OE 69% Disc Material Ceramic Clutch Disc Diameter (Inches) 9 Clutch Disc Diameter (Millimeters) 228 Input Shaft Diameter (inches) 1 Pressure Plate Type Heavy Duty Warranty 12 Months ( view details ) Description SB5-HDG6 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 6-pad, spring-centered race disc features a spring-center to properly damp torsiona
Pressure Plate: Heavy Duty | Disc: 4-Pad Race Sprung (ACTSB5-HDG4)
Note: This product is applicable for the following applications, 2005-2012 Subaru Legacy 2.5GT / Spec.B 2006-2008 Subaru Forester & Outback 2006-2018 Subaru Impreza WRX Item Description ACT Heavy Duty Race Sprung 4 Pad Clutch Kit Product Weight (lbs.) 14.4 Torque Capacity (ft/lbs.) 535 Torque Capacity Over OE 69% Disc Material Ceramic Clutch Disc Diameter (Inches) 9 Clutch Disc Diameter (Millimeters) 228 Input Shaft Diameter (inches) 1 Pressure Plate Type Heavy Duty Warranty 12 Months ( view details ) Description SB5-HDG4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad spring-centered race disc features a spring-center to properly damp torsional vibrations for qu
Fitment note: Confirm model year, engine, transmission, flywheel, and related clutch components before ordering.