GSC Power-Division Intake 21-4N Chrome Polished Valve Set, 35mm (+1mm) for 4G63T (gsc2004-8) 1584 300mm Length x 8mm ID

300mm Length x 8mm ID Side 1 x 8mm ID Side 2

Seibon carbon fiber panels are meticulously inspected for quality and fitment

Hawk Performance has developed friction solutions for some of the largest trucks on the planet

+15 HP / +13 lbs

2013 Mazda 3 Sport GX Hatchback 2

GSC Power-Division Intake 21-4N Chrome Polished Valve Set, 35mm (+1mm) for 4G63T (gsc2004-8) 1584 300mm Length x 8mm IDWhen 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