Upgrade your Mitsubishi engine with the Brian Crower BC3101 30.5mm exhaust valves, designed specifically for 4G63 models found in Eclipse and Evolution vehicles. Crafted with precision, these valves ensure optimal airflow and combustion efficiency, enhancing engine performance and durability. Constructed from high-quality materials, they are engineered to withstand the rigors of high-performance applications, making them ideal for enthusiasts and professional tuners alike. The 30.5mm size is tailored for maximum flow, supporting both stock and modified engine builds for improved horsepower and torque. Easy to install, these valves are a reliable choice for rebuilding or upgrading your Mitsubishi engine to achieve better performance and longevity.
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