GSC Power-Division Intake 21-4N Chrome Polished Valve Set, 35mm (+1mm) for 4G63T (gsc2004-8) 1584 +15 HP / +13 lbs

+15 HP / +13 lbs

Manufactured with premium-grade carbon fiber used in aviation and aerospace

Nitrous solenoid active)

Seibon carbon fiber panels are meticulously inspected for quality and fitment

GSC Power-Division Intake 21-4N Chrome Polished Valve Set, 35mm (+1mm) for 4G63T (gsc2004-8) 1584 +15 HP / +13 lbsWhen 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