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Our AOS design incorporates a 1-liter cast aluminum swirl pot canister that significantly improves oil separation from the PCV system before returning PCV gasses to the intake
Mount Type: Radial
REBUILD YOUR ENGINE USING TRUSTED AND PROVEN BEARINGS BROUGHT TO YOU BY KING
Follows OE Bumper Contour
The BR model is designed for street use and occasional track days
GSC Power-Division Stainless Steel Intake Valves +1mm - Subaru Models (inc. 2002-2014 WRX / 2004-2021 STI) PDM_vents-and-louvers Our AOS design incorporates aHIGHLIGHTS: Stronger stainless steel construction +1mm oversize Complete set for the intake side GSC Power Division Stainless Steel Intake Valves +1mm SPECS: 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 increasing valve spring seat pressures Valve stems are micro polished to allow for less oil retention on the stem