GSC Power-Division

GSC Power-Division Exhaust Valve Set 29mm Head | Mitsubishi 4B11T (2025-8)

  • Sale
  • $190.40
  • Regular price $224.00

GSC Power-Division STD Size SUPER ALLOY Exhaust Valves for EVO X 4B11T

For those running high horsepower, high EGT set ups that need a valve that will last in 2000F conditions. The Super Alloy Exhaust valves have Chrome polished stems to create a smooth, durable finish for added life and better lubricity especially when paired with the GSC Manganese bronze valve guides. Strength, heat resistance and performance are engineered into every valve. Under head dish is maximized for weight savings while swirl polished and backcut heads promote better air flow without sacrificing durability.


  • Standard size
  • Super alloy chrome polished stems


  • 2008-2015 Mitsubishi Lancer Evolution X 4B11T

What's In The Box?

  • (8) Exhaust Valves


  • Manufacturer Standard Warranty