GSC Super Alloy Exhaust Valve Set – EJ20/EJ257 Turbo (GSC2015-8)
Built for High-Heat, High-Horsepower EJ Turbo Engines
Designed for demanding Subaru EJ20 and EJ257 turbocharged setups, the GSC Power-Division Super Alloy Exhaust Valve Set is engineered to perform under extreme conditions. This standard-size 32mm valve set is ideal for builds pushing elevated exhaust gas temperatures—up to 2000°F.
Precision Specs
- Part Number: GSC2015-8
- Standard Size: 32mm
- Stem Diameter: 6.0mm
- Overall Length: 104.65mm
- Head Diameter: 32.00mm
Engineered for Strength, Flow, and Longevity
Each valve features a chrome-polished stem for smoother operation and extended life—especially when paired with GSC Manganese bronze valve guides. The under-head dish is optimized for weight reduction, while swirl-polished and backcut heads enhance airflow without compromising durability.
Key Features:
- Withstands EGTs up to 2000°F
- Chrome-polished stems for reduced friction
- Lightweight under-head dish design
- Swirl-polished and backcut heads for better flow
- Perfect for high-performance EJ turbo builds
Upgrade Your EJ Build with Confidence
Whether you're chasing horsepower or reliability, this set of 8 Super Alloy Exhaust Valves delivers the heat resistance and performance your EJ20 or EJ257 turbo engine demands.
Fitment:
- 2002–2005 Subaru WRX (EJ205 Turbo)
- 2004–2007 Subaru WRX STI (EJ257 Turbo)
- 2006–2014 Subaru WRX (EJ255 Turbo)
- 2008–2021 Subaru WRX STI (EJ257 Turbo)
- 1989–2001 Subaru Legacy GT/RS (EJ20 Turbo, JDM)
- 1992–2000 Subaru Impreza WRX (EJ20 Turbo, JDM)
- 1999–2001 Subaru Impreza WRX STI (EJ207 Turbo, JDM)
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
