GSC Standard Exhaust Valve – FA20 BRZ/FRS (GSC2131-01)
High-Flow Exhaust Valve for 2014+ FA20 Engines
Built for the 2014+ Subaru BRZ, Scion FR-S, and Toyota 86, the GSC Power-Division Standard Exhaust Valve is engineered for durability and performance. With a 29mm head and precision-machined stem, this valve is optimized for high RPM, boost pressure, and aggressive cam profiles.
Technical Specifications
- Part Number: GSC2131-01
- Head Diameter: 29.00mm
- Stem Diameter: 5.5mm
- Overall Length: 97.60mm
Designed for Strength, Flow, and Longevity
Using advanced 3D modeling and simulation tools, GSC developed a high-flow valve head with reduced face distortion for better sealing under extreme conditions. Prototype testing ensures top-tier airflow and consistent performance throughout the valve’s lifespan.
Key Features:
- Swirl-polished head for smoother exhaust flow
- Backcut design reduces weight for higher RPM and boost
- Micro-polished stem minimizes oil drag and improves motion
- Made from modified 23-8n stainless for heat resistance and longevity
- Hardened or stelite-tipped valve ends for reduced wear
- Optimized tip height for better geometry and faster lash setup
- Balanced keeper groove to reduce spring shims and maximize kit performance
- Compatible with OEM or upgraded keepers/locks (reuse not recommended for performance builds)
Fitment Note
SPECIAL NOTE: This valve is designed for 2014 and newer FA20 engines only. Please verify compatibility before ordering.
Fitment:
- 2014 Subaru BRZ 2.0L FA20
- 2015 Subaru BRZ 2.0L FA20
- 2016 Subaru BRZ 2.0L FA20
- 2017 Subaru BRZ 2.0L FA20
- 2018 Subaru BRZ 2.0L FA20
- 2019 Subaru BRZ 2.0L FA20
- 2020 Subaru BRZ 2.0L FA20
- 2021 Subaru BRZ 2.0L FA20
- 2014 Scion FR-S 2.0L FA20
- 2015 Scion FR-S 2.0L FA20
- 2016 Scion FR-S 2.0L FA20
- 2017 Toyota 86 2.0L FA20
- 2018 Toyota 86 2.0L FA20
- 2019 Toyota 86 2.0L FA20
- 2020 Toyota 86 2.0L FA20
- 2021 Toyota 86 2.0L FA20
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
