GSC P-D Chrome Polished Exhaust Valve 33mm Head (+1mm) WRX / STI Subaru EJ Series 2002-2021 (Set 8) Crosstrek_2018-2023 Inner width: approx 3-3/4”

Inner width: approx 3-3/4”

with a built/ported head

Brian Crower rods are a high-precision choice for your Subaru

This product is built with a predetermined actuator spring suitable for at or slightly above factory boost levels

2012-2016 Subaru Impreza 4- and 5-door

GSC P-D Chrome Polished Exhaust Valve 33mm Head (+1mm) WRX / STI Subaru EJ Series 2002-2021 (Set 8) Crosstrek_2018-2023 Inner width: approx 3-3/4”Part #: 2013 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