GSC Power-Division Single Exhaust 23-8N Chrome Polished Valve, 30mm (+1mm) STD (gsc2023-01) 1701 Integrated 1/8th NPT Port with

Integrated 1/8th NPT Port with plug on lower outlet tank for Water-Methanol Injection

Distributes Lateral Load Over Both Front Strut Towers

For Q5/SQ5 S5 owners looking to fine tune the sound of their 3

Our products have dominated motorsports for more than 25 years

and sedans

GSC Power-Division Single Exhaust 23-8N Chrome Polished Valve, 30mm (+1mm) STD (gsc2023-01) 1701 Integrated 1/8th NPT Port withWhen 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