GSC Over Size 37mm Intake Valve Set - Subaru EJ20 / EJ25 Turbo K&N Fits 2008-2017 Subaru STI -

Fits 2008-2017 Subaru STI - FRS/BRZ/86 13+

High quality gloss clear finish provides fade resistance from heat and UV light

They designed tabs to be laser cut and CNC bent from 5052 aluminum

Great for street

designed specifically for your vehicle

GSC Over Size 37mm Intake Valve Set - Subaru EJ20 / EJ25 Turbo K&N Fits 2008-2017 Subaru STI -GSC set out to create the best performance, longest lasting Subaru oversize (+1) 37mm intake valves available to the aftermarket. Using advanced 3D design and simulation programs GSC created a stronger and higher flowing valve head design. GSC flow tests prototype valve heads to specific applications, making sure they have the highest flowing valve head available on the market today. The materials used by GSC have less valve distortion at the face