GSC Dual Cylindrical Valve Spring Kit WRX 15-21 / BRZ / FR-S / 86 13-20 | 5256 Wheel Bolt Pattern_4x108 Intercooler-to-throttle-body coupler

Intercooler-to-throttle-body coupler

one barbed for rubber hose

Motorsport Version (CFD driven Heatsink design)

HS08SW4GT3

Standard pre-paint prep (sanding and primer) is required if painting

GSC Dual Cylindrical Valve Spring Kit WRX 15-21 / BRZ / FR-S / 86 13-20 | 5256 Wheel Bolt Pattern_4x108 Intercooler-to-throttle-body couplerProduct Fitment: 2015 2021 Subaru WRX 2013 2016 Scion FR S 2013 2020 Subaru BRZ 2017 2020 Toyota 86 The GSC Power Division Dual Valve Spring Kit for the FA20 engine offers a serious valvetrain upgrade for enthusiasts building high revs or high boost applications. Engineered for strength, precision, and endurance, this kit features dual concentric springs with high seat pressure and matching titanium retainers for maximum reliability. Key Features: