GSC Power-Division Single Intake 21-4N Chrome Polished Valve, 35mm (+1mm) for 4G63T (gsc2004-01) _TÜV we quickly found it necessary

we quickly found it necessary to upgrade the MAP sensor for the R35 GTR

Enhance your 2015-2020 Subaru WRX with the Seibon Gloss Carbon Fiber Rear Diffuser

perfectly engineered Conversion Kits are available

round muffler with a center-in/center-out configuration giving a more aggressive sound and higher flow

Front and 2

GSC Power-Division Single Intake 21-4N Chrome Polished Valve, 35mm (+1mm) for 4G63T (gsc2004-01) _TÜV we quickly found it necessaryWhen creating our new valve line we set out to create the best performance, longest lasting valves available to the aftermarket. Using advanced 3D design and simulation software, we have created a stronger and higher flowing valve head design. We flow test prototype valve heads in the specific applications to make sure we have the highest flowing valve head available on the market today. With the materials used, we have less valve distortion at the