GSC Power-Division 21-4N Intake Valve Set of 8-35mm STD (gsc2122-8) 1540 Infiniti's flagship sedan has lacked

Infiniti's flagship sedan has lacked aftermarket performance options for far too long

30-120 PSI

Improved throttle response and sports car sound

Whether you're on a road trip with the family or off-roading on the trails

GSC Power-Division 21-4N Intake Valve Set of 8-35mm STD (gsc2122-8) 1540 Infiniti's flagship sedan has lackedWhen 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