Tomei Racing Valves for 4B11 Mitsubishi Evo X (TA303A-MT02A) Oil Temp Gauge As an example

As an example

(1) CARB EO Sticker

The "Sport" sound level delivers an aggressive cold start and a moderately aggressive exhaust note during acceleration while maintaining stock in-cabin noise levels

0" 4F907R 2011-2014 WRX/STi GRB

The GSC2056-01

Tomei Racing Valves for 4B11 Mitsubishi Evo X (TA303A-MT02A) Oil Temp Gauge As an exampleTomei's racing valve set for the 4B11 Evo X models excels in high horsepower applications. Each valve features an oversized head diameter, custom tailored to enhance flow rates. The waisted stem design maximizes air and gas intake and exhaust during valve operation. Precision machining ensures each valve is optimized for specific engines, with design improvements to the head, face, stem, and lock grooves enhancing sealing, efficiency, and longevity.