GSC Power-Division 21-4N Single Intake Valve-33.6mm (STD) (gsc2062-01) _Black Progressive-density filter element improves power

Progressive-density filter element improves power and efficiency

All end caps are made with an ultra-high strength nylon composite formula

Ethanol content

AMS Titanium Exhaust X Pipe (Optional)

When it comes to a high performance vehicle like the Ferrari Portofino

GSC Power-Division 21-4N Single Intake Valve-33.6mm (STD) (gsc2062-01) _Black Progressive-density filter element improves powerWhen 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