Clutch Masters Aluminum Flywheel Subaru STI 2004-2021 | FW-721-AL vendor_Seibon you can purchase the outer

you can purchase the outer ring separate

The SSQV4 is engineered to initially open the small primary valve at light throttle and load conditions

DBA's Street Series improves pad bite and assists to reduce brake fade by evacuating gases created when pads contact the rotor

(1) PERRIN Intake body

Clutch Masters Aluminum Flywheel Subaru STI 2004-2021 | FW-721-AL vendor_Seibon you can purchase the outerPart #: FW 721 AL Made from 6061 T6 aircraft grade billet aluminum with a replaceable high carbon steel friction surface and an OEM steel ring gear secured by bolts, Clutch Masters flywheels are some of the finest available on the market. Each unit is certified to meet SFI Spec 1. 1 or 1. 2 and is backed by a limited lifetime warranty. Weight: 11 lbs Part Number: FW 721 AL