ACT Heavy Duty Performance Street Disc Clutch Kit STI (2004-2018) Mazda 5” diameter piping to quad

5” diameter piping to quad staggered 3

The more rigid design of the PSRS eliminates suspension misalignment making your MINI handle consistently and predictably during all driving conditions

These harder bushings eliminate all the rear sub frame movement during hard lateral loads

This extra work provides the best laminar flow of intake air

- 80% torque capacity over stock

ACT Heavy Duty Performance Street Disc Clutch Kit STI (2004-2018) Mazda 5” diameter piping to quadThe 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