ACT Heavy Duty Clutch Kit 4 Puck Solid Subaru STI 2004-2021 / Legacy GT Spec B 2007-2009 | SB10-HDR4 ACT

Fitment Information:

2004-2021 Subaru STI

2007-2009 Subaru Legacy GT Spec B

Note: Legacy GT spec.B models will need to use the STI flywheel in order to use this clutch

Features:

ACT’s SB10-HDR4 kit features a rigid, 4 pad race clutch disc paired with their ever popular Heavy Duty pressure plate. What does this mean for you? Well, that means that you will have light to moderate pedal effort with aggressive engagement and the ability to handle up to 668ft/lbs of torque on your Subie. This clutch kit is best suited for race use only.

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. Monoloc is a one-piece, direct replacement or upgrade to the standard, two-piece wedge collar and wire ring featured in pull-type clutches. The spring tension of the segmented retaining ring is carefully calculated and tested for optimal performance. It provides uniform loading on the bearing and pressure plate to assure proper alignment, regardless of driver influence or vehicle modifications. Monoloc’s hardened chrome-moly steel construction will provide years of service.

• Feel – Light to moderate pedal effort, aggressive engagement, increased gear rattle, confidence during hard shifts
• Recommended Use – Recommended for race use only
• Torque Capacity (ft/lbs.): 668
• ACT Difference – 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability, includes ACT’s patented Monoloc

What’s Included:

• 4 Pad Rigid Disc
• Heavy Duty Pressure Plate
• Alignment Tool
• Pilot Bearing
• Release Bearing