The Competition Clutch 2-721-ST Forged Lightweight Steel Flywheel, for 04-18 Subaru WRX STI, is recommended for street driven applications. This flywheel will work with ALL performance and stock clutch assemblies.

Qualities of the CCI Lightweight Steel Flywheel Preserves low end torque and drive ability One piece ring gear for high durability Weight of 15lbs Well suited for Stage 1 and Stage 2 clutch kit applications Stamped with 4140 plate with 2000 ton pressure at 1260 degrees CNC machined and balanced to O.E. specifications Reduced Mass = Increased Acceleration

Meets and exceeds SFI 1.5