GSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Intake Valve - 37mm Head (+1mm) - Single

GSC Power-Division intake valves for the EJ WRX and STi models. Intake valves are sold as a set of 8 or individually as needed. Available in the standard 36mm size or +1mm oversized. Valve stem diameter is 6.0mm, overall length is 104.40mm.Vehicle Fitment:Subaru EJ20/EJ252002-2014 Subaru WRX2004-2021 Subaru STi More Info:Using advanced 3D design and simulation software, GSC has created a stronger and higher flowing valve head design. GSC flow tests prototype valve heads in the specific applications to ensure the highest flowing valve head available on the market today. With the materials used, GSC offers less valve distortion at the face than any of the tested designs. Less distortion allows for better sealing under extreme conditions and more consistent performance throughout the life of the valve. Swirl polished heads for smoother air flow over the valve Back cut to reduce valve weight for higher RPM, higher boost pressure, and allow for more aggressive cam profiles without increasi