Spec Stage 5 Clutch Kit Subaru STI 2004-2021 G37_2007-2013 Progress Anti-roll bars are cold-formed

Progress Anti-roll bars are cold-formed in-house using custom-built precision bending equipment

Part #: 17U-07-0650-4

Perrin's pulley is not underdriven and will not affect the life of your engine

FITMENT: 52mm Gauges - Evo 8 & 9

a pre-order typically takes about 8-12 weeks for build time

Spec Stage 5 Clutch Kit Subaru STI 2004-2021 G37_2007-2013 Progress Anti-roll bars are cold-formedPart #: SU305 SPEC's Stage 5 features a full metallic disc with the highest possible friction coefficient. Not suggested for any STI that gets used on the street. The SPEC Stage 5 has a solid 12 rivet hub and the assembly is heat treated for strength and durability. Best for extreme street and drag racing. Not for street use. Very harsh engagement and lots of noise chatter. Features: Torque capacity: 697ft lbs at the crank Full metallic friction