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Advanced Clutch HD/Race Sprung 4 Pad SB11-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 quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 4-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 4-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.
Install Instructions:
- For Instructions CLICK HERE
Features:
- Light to moderate pedal effort, aggressive engagement, OE to mild gear rattle
- Moderate friction life, extended by ACT's exclusive diaphragm design
- Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance
- Recommended for high horsepower street or race use
- 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability
Specifications:
- Clutch Master Cylinder Included: No
- Grease Included: Yes
- Grade Type: Performance
- Flywheel Included: Yes
- Pressure Plate Type: Heavy Duty
- Release Bearing Included: Yes
- Clutch Disc Diameter: 9.4 in
- Clutch Disc Diameter: 240 mm
- Disc Material: Ceramic
- Input Spline Quantity: 24
- Input Shaft Diameter: 1 in
- Alignment Tool Included: Yes
- Disc Type Sprung Solid: Sprung
- Pressure Plate Bolts Included: Yes
- Clutch Slave Cylinder Included: No
- Flywheel Bolts Included: No
- Flywheel Type: Streetlite
- Product Weight (lbs.): 28.5
- Torque Capacity (ft/lbs.): 574
- Torque Capacity Over OE: 0.78
Notes:
- Conversion Kit - replaces original 230mm clutch. Must use ACT Flywheel (included in kit). Subaru has incorporated 240mm clutch components into production during mid-2018MY production starting with VIN J806877. ACT clutch kits and flywheels are not compatible with the revised OEM components. Pressure plate bolts included (M8-1.25 x 16mm).
Other Part Numbers:
ACT #actSB11-HDG4
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Make Vehicle | Model | Year |
---|---|---|
2006 Subaru Baja |
Baja | 2006 |
2006-2008 Subaru Forester |
Forester | 2006-2008 |
2005-2012 Subaru Legacy |
Legacy | 2005-2012 |
2005-2009 Subaru Outback |
Outback | 2005-2009 |
2006-2024 Subaru WRX |
WRX | 2006-2024 |
If you've added boost, tuned for more power, or simply want better throttle control, then your stock clutch won't cut it. That?s where ACT (Advanced Clutch Technology) comes in delivering high-performance clutch kits and flywheels designed for real drivers who push their builds on the street, strip, or track.
ACT?s lineup includes everything from daily driver friendly HD kits to hardcore twin disc setups for serious horsepower. Whether you?re launching hard in a WRX, drifting in a 370Z, or canyon carving in an M3, ACT gives you the torque capacity and engagement you need without sacrificing drivability.
Why ACT? Because Power Without Control Is Useless.- Hold More Power Engineered to handle turbo, supercharger, and high-compression builds
- Faster Engagement Stronger pressure plates for better bite off the line
- Better Pedal Feel Balanced response without going full race-car stiff
- Reduced Rotational Mass Lightweight flywheels improve rev-matching and response
- No Guesswork Direct-fit applications, no fabbing, no hassle
ACT doesn?t just make universal performance parts ? they build complete, vehicle-specific clutch solutions for enthusiast favorites. Whether you daily a Civic Type R, track a Subaru STI, drift a 240SX, or drag a Mustang GT, ACT offers the right clutch to match your build goals.
Top supported platforms include the Nissan 350Z/370Z, Toyota Supra A90, Chevy Camaro SS/ZL1, Mitsubishi Evo, Ford Focus RS/ST, and BMW M3/M4 ? each with clutch options tuned to your driving needs.
What ACT Offers:- Performance Clutch Kits From HD street kits to twin-disc race systems
- Clutch Discs 6-puck, full-face, rigid or sprung to match your style
- Pressure Plates Heavy-duty options that increase clamp load without sacrificing control
- Chromoly Lightweight Flywheels Quicker revs, smoother shifts, and less drivetrain stress
- Complete Hardware Kits Everything you need for a proper install
ACT isn?t hype ? it?s proven. Their clutches are SFI-certified, track-tested, and used by racers in drag, time attack, autocross, drift, and rally. But what really matters? They hold power, last longer, and feel right even after hundreds of hard launches or hours of canyon carving.
Whether you're upgrading for more power or replacing a tired OEM clutch, ACT gives you the bite, strength, and feel to drive harder with confidence. No compromises, no excuses just parts that work when it matters.
ACT reserves the right to examine any part returned for warranty claim to determine, to ACT's satisfaction, whether the material or workmanship of the part does not conform to this limited warranty. ACT's obligation under this warranty shall be limited to repairing, replacing, or crediting, at its option, any part which is deemed covered by ACT. No labor, lift or storage charges will be reimbursed for any reason. Damage to ACT's parts resulting from misuse, improper use, or abuse shall void this limited warranty. Failure to follow ACT's installation instructions and the vehicle manufacturers installation procedures and specifications shall void this limited warranty.
ACT undertakes no responsibility for the quality of the goods except as otherwise provided in this contract. ACT assumes no responsibility that the goods will be fit for any particular purpose for which you may be buying these goods, except as otherwise provided in the contract. ACT shall not be liable for any damage or injury to persons or property resulting from improper installation or misuse of any part subject to this warranty.
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