Ferrea Dual Valve Spring Kit Subaru BRZ / Scion FR-S 2013-2020 | KT4022 vendor_Action Clutch HKS Type S Rear Diffuser

HKS Type S Rear Diffuser

Part #: 512-880-8045GM

the MPR is the only regulator on the market that can be floor mounted

Part #: SU005

Bolt on 4pc design

Ferrea Dual Valve Spring Kit Subaru BRZ / Scion FR-S 2013-2020 | KT4022 vendor_Action Clutch HKS Type S Rear DiffuserApplications: 20132020 Subaru BRZ 20132020 Scion FR S Harmonics and high frequency fatigue are present in every racing engine and can quickly destroy the valvetrain if left uncontrolled. The Ferrea Dual Valve Spring Kit is engineered to eliminate these issues by delivering exceptional stability, control, and durability under the most demanding high RPM conditions. Designed for Subaru BRZ and Scion FR S, Ferrea valve springs are developed from premium