ACT Xtreme Duty Performance Street Disc Clutch Kit STI (2004-2018) Mitsubishi Pipe Diameter: 76mm / 3"

Pipe Diameter: 76mm / 3"

Invidia's downpipe is a great way to start adding Horse Power and Torque gains

AEM strut tower bar for the the Scion FR-S

Aftermarket underdrive pulleys are prone to charging and drivability problems

This kit replaces the stock toe-adjuster and locks toe in place

ACT Xtreme Duty Performance Street Disc Clutch Kit STI (2004-2018) Mitsubishi Pipe Diameter: 76mm / 3"The SB10 XTSS kit from ACT for the Subaru STI features an Xtreme pressure plate for the most demanding driver. ACT Xtreme 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 are the