Brian Crower 02-09 WRX / 04-09 STI EJ205 / EJ255 / EJ257 +1mm Over STD Tip (37mm) Intake Valve Set 8 3604-S - Brian Crower Valves Brian Crower Valves are made from premium stainless steel, fully machined and swirl polished for ultimate air flow. Dished head for added weight savings and increased valve control at high rpm. Standard and oversize head. EJ257 Stainless Steel Valves 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. Engine, HPT Autosport, Brian Crower, Brian Crower 02-09 WRX / 04-09 STI EJ205 / EJ255 / EJ257 +1mm Over STD Tip (37mm) Intake Valve Set 8 3604-S