GSC Power-Division Stainless Steel Intake Valves +1 2002-2014 WRX / 2004-2021 STI YMM_2007_Forester With these camber plates

With these camber plates

the Tomei Fuel Pressure Gauge helps Subaru owners make informed adjustments

A key feature of the IAG Street Series Engine Mounts is their interchangeable bushing design

Note that an OEM downpipe to 3-inch cat back adapter may be required for compatibility depending on your current setup

GSC Power-Division Stainless Steel Intake Valves +1 2002-2014 WRX / 2004-2021 STI YMM_2007_Forester With these camber platesGSC set out to create the best performance, longest lasting Subaru intake valves available to the aftermarket. Using advanced 3D design and simulation programs GSC created a stronger and higher flowing valve head design. GSC flow tests prototype valve heads to specific applications, making sure they have the highest flowing valve head available on the market today. The materials used by GSC have less valve distortion at the face than any of the tested