GSC Power-Division +1mm Intake Valve Set (8) – Mitsubishi EVO X 4B11T – GSC2024-8
Engineered for the Mitsubishi EVO X 4B11T, this set of eight GSC Power-Division intake valves features a +1mm oversized head (36mm diameter) for enhanced airflow and performance. Each valve measures 5.5mm in stem diameter and 113.15mm in overall length.
Designed using advanced 3D modeling and simulation tools, these valves deliver superior flow and durability. GSC prototypes are flow-tested in application-specific setups to ensure maximum performance. The result: reduced valve face distortion, improved sealing under extreme conditions, and consistent output over time.
Key Features:
- Swirl-polished heads improve airflow efficiency
- Back-cut design lowers valve weight for high-RPM stability and aggressive cam compatibility
- Micro-polished stems reduce oil retention and drag for smoother movement
- Intake valves crafted from modified 21-4n stainless; exhausts use heat-resistant 23-8n stainless
- Hardened or stelite-tipped valve ends minimize wear and extend service life
- Optimized tip heights reduce installation time and maintain proper valvetrain geometry
- Keeper grooves fine-tuned to balance spring pressure and reduce shim use
- Compatible with OEM or upgraded keepers/locks (reuse not recommended for performance builds)
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
