GSC Power-Division Stainless Steel Intake Valves 36mm - Subaru Models (inc. 2002-2014 WRX / 2004-2021 STI) PDM_fuel-system-kits Features a unique patent-pending

Features a unique patent-pending

Because this is a solid transmission mount

The HPFP needs a constant supply of fuel pressure (around 4 bar) at its inlet in order to avoid cavitation

Sold as a pair (2)

The Pressure relief valve piston is then REM polished which provides a non-directional

GSC Power-Division Stainless Steel Intake Valves 36mm - Subaru Models (inc. 2002-2014 WRX / 2004-2021 STI) PDM_fuel-system-kits Features a unique patent-pendingThe 36mm Stainless Steel Intake Valves will provide optimal performance under extreme conditions in the Subaru STI. GSC Power Division 36mm Stainless Steel Intake Valves Intake Valve Specs: 36mm in size Swirl polished heads for smoother airflow over the valve Back cut to reduce valve weight for higher rpm, higher boost pressure, and allow for more aggressive cam profiles without increasing valve spring seat pressures Valve stems are micro polished to