GSC P-D Chrome Polished Exhaust Valve 32mm Head (STD) WRX / STI Subaru EJ Series 2002-2021 (Set 8) NGK Plugs Threaded portion of shaft is

Threaded portion of shaft is powder coated then salt spray coated for optimum street durability (we suggest also using anti seize or other protective products when you install your coilovers for even further protection from the elements if you are exposed to snow and salt)

Engine diagnostics

The twin polished Borla tips finish the system off

Hawk HPS pads are designed primarily for a daily driven 350Z or G35 but will hold up under light autocross duty as well

GSC P-D Chrome Polished Exhaust Valve 32mm Head (STD) WRX / STI Subaru EJ Series 2002-2021 (Set 8) NGK Plugs Threaded portion of shaft isPart #: 2011 8 When 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 programs 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