Brian Crower 30.5mm OEM Size Exhaust Valves Mitsubishi EVO 8 & 9 2003-2006 / Eclipse 4G63 1990-1999 | BC3101 Vehicle Model_IS F Optimized for airflow and heat

Optimized for airflow and heat exchange balance

Our silicone hose(s) offer even better fitment than factory

Supports performance upgrades and tuning

Even charge air distribution with engineered Y-pipe

All AMS intercoolers are pressure tested before boxing

Brian Crower 30.5mm OEM Size Exhaust Valves Mitsubishi EVO 8 & 9 2003-2006 / Eclipse 4G63 1990-1999 | BC3101 Vehicle Model_IS F Optimized for airflow and heatBC 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