GSC Power-Division 23-8N Exhaust Valve Set of 12-30mm (+1mm) (gsc2073-8) 5015 Skunk2s 84mm - 90mm Big-Bore

Skunk2s 84mm - 90mm Big-Bore Throttle Body Cold-Air Intake Coupler allows for easy installation of Skunk2s '06-'11 Civic Si Cold-Air Intake when using a Pro Series Throttle Body or similar (also compatible with OEM TL throttle body)

Important: When using a throttle body injection plate

new precision steel alloy pump drive tube

This HPS High Temp 3-ply Reinforced Silicone Coolant Hose Kit is designed to replace stock OEM rubber radiator

Bolt-On Installation

GSC Power-Division 23-8N Exhaust Valve Set of 12-30mm (+1mm) (gsc2073-8) 5015 Skunk2s 84mm - 90mm Big-BoreWhen 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