ACT Heavy Duty Performance Street Disc Clutch Kit STI (2004-2018) Honda Monoloc's hardened Chrome-moly steel construction

Monoloc's hardened Chrome-moly steel construction will provide years of service

The core cools the charged air on the way to the engine

For more accurate and sharp steering

collecting data and measuring performance

while optimizing back pressure

ACT Heavy Duty Performance Street Disc Clutch Kit STI (2004-2018) Honda Monoloc's hardened Chrome-moly steel constructionThe SB10 HDSS kit from ACT for the Subaru STI 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