
Key Features & Specs:
Fitment:
The ACT T1S-S05 Mod-Twin 225 Heavy Duty Sprung Street Clutch Kit is engineered for high-performance Subaru WRX STI builds requiring exceptional torque holding capacity with smooth street manners. Featuring ACT’s modular twin-disc design with organic friction discs, a heavy duty pressure plate, and MonoLoc technology, this clutch provides strong engagement with light pedal effort and smooth shifting. Designed for street and street/strip applications, the Mod-Twin system delivers excellent heat tolerance, long service life, and consistent performance under demanding conditions while remaining fully serviceable and SFI certified.