GSC Power-Division 21-4N Intake Valve Set of 12 (gsc2050-12) 18355 This fitting supports smooth and

This fitting supports smooth and reliable connections essential for proper operation of injection systems

ZM10-HDSS kit features ACT's most popular Heavy Duty pressure plate and most popular street disc

Constructed From 100% Hand TIG-Welded 304 Stainless Steel Tubing

Please Note: Cars equipped with PSE will need the AWE Valve Simulators in addition to the exhaust

GSC Power-Division 21-4N Intake Valve Set of 12 (gsc2050-12) 18355 This fitting supports smooth andWhen 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