GSC Power-Division Super Alloy Exhaust Valve +1mm Oversized Set of 12 (gsc2053-12) 1111 This race designed exhaust makes

This race designed exhaust makes the majority of its power in the upper RPM band

and corrosion resistance

and precision computer numberic control (CNC) manufacturing ensures an accurate fit

Vehicles that don't have a factory service-point require "cutting" the factory exhaust system before installing a Borla Cat Back performance exhaust system

Direct replacement simple bolt-on replacement for the heavy factory OEM muffler system

GSC Power-Division Super Alloy Exhaust Valve +1mm Oversized Set of 12 (gsc2053-12) 1111 This race designed exhaust makesWhen 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