Action Clutch Stage 4 (1MD) clutch kit with lightweight flywheel for 2018–2021 Subaru WRX 2.0L (FA20DIT) turbo AWD combines an Unsprung MIBA Ceramic disc and heavy‑duty diaphragm pressure plate with a lightened flywheel for faster response and high durability. Intended for dedicated race vehicles, it may introduce break‑in chatter; kits are quality checked and signed off by experienced engineers to ensure dependable performance.
Action Clutch 18-21 Subaru WRX 2.0L (FA20DIT) Turbo AWD Stage 4 Clutch (1MD) w/Lightened Flywheel