GSC Power-Division Super Alloy Exhaust Valve – GSC2091-01 (Toyota / BMW B58 & S58)
Built for extreme performance, the GSC2091-01 Standard Size Super Alloy Exhaust Valve is designed for high-horsepower Toyota and BMW engines running B58 and S58 platforms. Engineered to withstand exhaust gas temperatures up to 2000°F, this valve is ideal for turbocharged setups pushing serious heat and power.
Specs:
- Head Diameter: 28.5mm (STD size)
- Stem Diameter: 6mm
- Overall Length: 100.1mm
Each valve features a chrome-polished stem for enhanced lubricity and long-term durability—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 improve airflow without compromising strength.
Whether you're building for track use or high-boost street performance, GSC’s Super Alloy valves deliver the heat resistance and reliability your setup demands.
Fitment:
- 2016–2025 Toyota Supra 3.0L B58 (A90/A91)
- 2016–2025 BMW 340i / M340i 3.0L B58 (F30/G20)
- 2016–2025 BMW Z4 3.0L B58 (G29)
- 2018–2025 BMW X3 M 3.0L S58 (F97)
- 2018–2025 BMW X4 M 3.0L S58 (F98)
- 2021–2025 BMW M3 3.0L S58 (G80)
- 2021–2025 BMW M4 3.0L S58 (G82/G83)
- 2023–2025 BMW XM 3.0L S58 Hybrid
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
