ACT HD/Race Rigid 4-Pad Clutch Kit | Multiple Subaru Fitments (SB11-HDR4) ACT Clutch Kits & Flywheels

HD/Race Rigid 4-Pad Clutch Kit by ACT

SB11-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 chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 4-pad rigid race disc, engagement is harsher, but shifting is faster. The 4-pad rigid race disc is well-suited for the smaller disc sizes in smaller engines.

Features

• Feel – Light to moderate pedal effort, aggressive engagement, increased gear rattle
• Life – Moderate friction life, extended by ACT’s exclusive diaphragm design, rigid design may increase spline wear
• Quality – Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance
• Recommended Use – Recommended for race use only
• ACT Difference – 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

Applications

• 2006 – 2021 Subaru WRX
• 2004 – 2008 Subaru Forester XT
• 2005 – 2012 Subaru Legacy GT
• 2005 – 2009 Subaru Outback XT
• 2004 – 2006 Subaru Baja Turbo
• 2005 – 2006 Saab 9-2X Aero

Specifications

• Product Weight (lbs.): 27.1
• Disc Type: Rigid Race Disc
• Disc Material: Ceramic
• Pad Quantity: 4
• Pressure Plate Type: Heavy Duty
• Torque Capacity (Over OE): 78%
• Torque Capacity (ft/lbs.): 574

What’s In The Box?

• 1 – 4-Pad Rigid Race Disc
• 1 – Heavy Duty Pressure Plate
• 1 – Flywheel
• 1 – Release Bearing
• 1 – Alignment Tool

References

• Installation Instructions

Warranty

• Manufacturer Standard Warranty