GSC Power Division Exhaust Valve – Single Audi Daza/DNWA 2.5L 5-Cylinder – GSC2257-01
Enhance your Audi Daza or DNWA 2.5L 5-cylinder turbocharged engine with GSC Power Division’s super alloy performance exhaust valves. These precision-engineered components are designed to improve airflow, boost efficiency, and deliver long-lasting durability under high-boost conditions.
The back-cut valve design promotes smoother exhaust flow, helping your engine reach higher RPMs and increased power output. Micro-polished stems reduce friction and oil retention, ensuring cleaner movement through the valve guide and extended component life—even under extreme RPM stress.
Built from high-strength super alloy materials, these valves are made to endure the intense heat and pressure found in turbocharged and supercharged applications. Hardened tips maintain consistent contact with the rocker arm or valve tappet, minimizing wear and maximizing longevity.
Designed as a direct OEM replacement, these valves are compatible with factory keeper/lock systems. For high-performance builds, GSC recommends installing new valve locks to prevent wear-related grooving and ensure long-term reliability.
Valve Dimensions:
- Head Diameter: 28.00 mm / 1.102 in
- Total Length: 101.8 mm / 4.008 in
- Stem Diameter: 5.96 mm / 0.235 in
Key Features:
- Improved Exhaust Flow: Back-cut design enhances RPM potential and powerband performance
- Reduced Friction: Micro-polished stems minimize oil retention and drag for smoother valve operation
- Extreme Heat Resistance: Super alloy construction handles high-temp, high-pressure environments
- Durable Valve Tips: Mid-stem friction weld reinforcement ensures long-lasting rocker/tappet contact
- OEM-Compatible Fitment: Works with triple-groove keeper/lock systems; new locks recommended for performance builds
- GSC Power Division Quality: Manufactured to meet the highest standards for reliability and performance
Sold Individually or as a Set of 10
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