ACT Heavy Duty Performance Street Disc Clutch Kit STI (2004-2018) Mazda no corners were cut in

no corners were cut in the fabrication of each and every one of these intakes

Mishimoto's X-Line racing radiator has 3 rows for a core that is 25% larger than the standard version

OEM mounts are made of sub-par material with rubber bushings that are infamous for deteriorating

ACT's Performance street discs are the most popular disc purchased

The specific timing of when the reflected sound waves rejoin the main exhaust flow creates a one-hundred-and-eighty-degree out-of-phase sound wave that cancels out problematic frequencies

ACT Heavy Duty Performance Street Disc Clutch Kit STI (2004-2018) Mazda no corners were cut inThe 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