Brian Crower BC3605-S 33mm Exhaust Valve - +1mm Over STD Tip (Set 8)

33mm Exhaust Valve - +1mm Over STD Tip (Set 8) For 2002-2009 Subaru WRX, 2004-2009 STI EJ205/EJ255/EJ257

BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, heat resistant stainless steel material to insure reliability with high boost and/or high rpm applications. The undercut stem above the head area not only reduces overall weight for extended rpm potential, but also significantly improves air/fuel flow in and out of the combustion chamber. Every valve is fully machined and features a swirl polished finish under the head.