Clutch Masters Steel Flywheel Subaru STI 2004-2021 | FW-721-SF vendor_Muteki They are an excellent upgrade

They are an excellent upgrade for enthusiasts seeking stronger braking performance without moving to an aggressive race-focused compound

but suspension tuning is key to maximizing handling and driver confidence

A programmable low fuel pressure warning system adds an extra layer of protection

2012-2016 Subaru Impreza 4- and 5-door

Clutch Masters Steel Flywheel Subaru STI 2004-2021 | FW-721-SF vendor_Muteki They are an excellent upgradePart #: FW 721 SF Clutch Masters Flywheels are designed and tested to ensure the safety and quality of every flywheel. Years of R&D has given us the knowledge and firsthand experience to choose wisely the best material to manufacture flywheels that will surpass your expectations. Depending on the application, the majority of Clutch Masters flywheels are made from 6061 T6 Billet Aluminum, 1045 or 4140 Billet Steel. Clutch Masters Flywheels are SFI