Ferrea Dual Valve Spring Kit Subaru BRZ / Scion FR-S 2013-2020 | KT4022 Vehicle Model_Mazdaspeed3 High Strength DOM Steel Oil

High Strength DOM Steel Oil Pickup Tube (3x thicker)

05-10 Subaru Legacy GT with DOHC Turbo engines

Part #: 3798808045SP

All BMW 840i | 850i | 850ci

safety and durability under extreme operating conditions

Ferrea Dual Valve Spring Kit Subaru BRZ / Scion FR-S 2013-2020 | KT4022 Vehicle Model_Mazdaspeed3 High Strength DOM Steel OilApplications: 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