GSC Power-Division Super Alloy Exhaust Valve – Mitsubishi EVO X 4B11T – GSC2025-01
Designed for high-output Mitsubishi EVO X 4B11T builds, the GSC2025-01 Super Alloy exhaust valve offers exceptional heat resistance and durability under extreme conditions. With a standard 29mm head, 5.5mm stem diameter, and 105.85mm overall length, it’s built to handle elevated EGTs up to 2000°F.
Each valve features a chrome-polished stem for smoother operation and reduced friction—especially when paired with GSC’s manganese bronze valve guides. The under-head dish is optimized for weight reduction, while swirl-polished and backcut heads enhance airflow and maintain strength under high boost and RPM.
Specs:
- Head Diameter: 29.00mm
- Stem Diameter: 5.5mm
- Overall Length: 105.85mm
- Material: Super Alloy for extreme temperature endurance
- Finish: Chrome-polished stem for improved lubricity
- Design: Swirl-polished and backcut for airflow and reliability
Fitment:
- 2008–2015 Mitsubishi Lancer Evolution X GSR
- 2008–2015 Mitsubishi Lancer Evolution X MR
- 2008–2015 Mitsubishi Lancer Evolution X Final Edition
- 2008–2015 Mitsubishi Lancer Evolution X SE (Special Edition)
- 2008–2015 Mitsubishi Lancer Evolution X FQ Series (UK models)
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
