Description
Build your Audi EA113 stronger with Supertech intake valves. Key specs: Material: stainless steel 21-4n, Head diameter: 34.85mm(+1mm), Stem diameter: 5.98mm, Overall length: 103.9mm, and Groove: single groove. Crafted from premium materials with computer-optimized profiles for improved airflow, heat dissipation and valvetrain stability at high RPM. Ideal for naturally aspirated, turbo and nitrous engine builds. For a complete valvetrain refresh, pair with matched Supertech exhaust valves, valve springs, retainers, valve guides and stem seals. Black nitride surface treatment reduces friction and improves heat dissipation versus uncoated valves, and proper installation requires verifying valve-to-piston clearance and installed spring height during assembly. Trusted by professional engine builders and racers worldwide.
