GSC Power-Division Exhaust Valve Set of 8-28mm (STD) (gsc2031-8) 1539 Its progressive layering allows the

Its progressive layering allows the filter to flow at high levels even when dirty

This system is aggressive and maximizes power while also removing unnecessary weight from the LEFT side of the car

a wideband controller and a state-of-the art engine management system in one powerful device we call a VCU (Vehicle Control Unit)

All hardware included

GSC Power-Division Exhaust Valve Set of 8-28mm (STD) (gsc2031-8) 1539 Its progressive layering allows theWhen 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