GSC Power-Division 21-4N Single Intake Valve-36mm (+1mm) (gsc2124-01) 1411 Flange Inside Dimensions - 5

Flange Inside Dimensions - 5

And Includes A Pass Through Connection Point To Support Other Vehicle Accessories Such As Cruise Control Functions Which May Still Require A Mechanical Connection To The Transmission

High Gloss Clear Coated Weave Carbon Fiber Housing And Tube

Delivers an aggressive look that matches the enhanced exhaust note

These headers will give you a significant volume increase and give your 997

GSC Power-Division 21-4N Single Intake Valve-36mm (+1mm) (gsc2124-01) 1411 Flange Inside Dimensions - 5When 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