Action Clutch Ironman Sprung (Street) for 2004–2021 Subaru WRX STI (2.5L EJ257) applies sintered iron friction material with a dual clamp-load pressure plate and sprung assembly to moderate engagement. While built for high torque and robust performance, the kit is intended primarily for dedicated high-powered applications and may not be suitable for normal daily driving in all cases.
Action Clutch 04-21 Subaru WRX STI 2.5L (EJ257) Turbo AWD Ironman Sprung (Street) Clutch Kit