GSC +1mm Intake Valve – FA20 BRZ/FRS/86 (GSC2134-01)
Oversized Intake Valve for FA20 High-Performance Builds
Designed for the 2014–2021 Subaru BRZ, Scion FR-S, and Toyota 86, the GSC Power-Division +1mm Intake Valve delivers enhanced airflow and long-term reliability. Featuring a 36mm head and precision-machined stem, this single valve is built to support high RPM, elevated boost, and aggressive cam profiles.
Technical Specifications
- Part Number: GSC2134-01
- Head Diameter: 36.00mm
- Stem Diameter: 5.5mm
- Overall Length: 104.90mm
Engineered for Flow, Strength, and Longevity
Developed using advanced 3D modeling and simulation software, GSC’s intake valve features a reinforced head profile and optimized flow dynamics. Prototype testing ensures maximum airflow in FA20 applications, while reduced face distortion improves sealing under extreme conditions for consistent performance over time.
Key Features:
- Swirl-polished head for smoother intake flow
- Backcut design reduces weight for higher RPM and boost
- Micro-polished stem minimizes oil drag and improves motion
- Made from modified 21-4n 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
