Competition Clutch Flywheel for Subaru STi (2-721-ST) Prothane more predictability on throttle input

more predictability on throttle input and eliminates that annoying clunking during hard shifts

stainless steel and titanium with various finish options

90 3798856530BK 18x8

Forge Motorsport atmospheric blow off valve (BOV) fits all Evo 4/5/6/7/8/9

Competition Clutch Flywheel for Subaru STi (2-721-ST) Prothane more predictability on throttle inputCompetition Clutch replacement flywheel for 2004+ Subaru STi is compatible with stock and factory style, single disc clutch kits. Weighs 15 pounds. Vehicle Fitment: 2004 2020 Subaru STi Description: CCI flywheels are a one piece, 4140 forged steel design to help significantly reduce the chances of ring gear separation and friction surface warpage. All flywheels can be resurfaced. The CCI Ultra Lightweight Steel Flywheel is machined with less material