Supertech VW/Audi 1.8T AEB Sodium Filled Inconel Exhaust Valve - +1mm Oversize - Set of 8

Supertech is well-known for making high-performance engine components, and these Inconel exhaust valves for the VW/Audi 1.8T AEB engine are a prime example of their work. If you're rebuilding the top end of your 1.8T and looking for valves that can handle serious heat and stress, these are a solid option. They are designed to be a +1mm oversize replacement, which can help improve sealing and performance when paired with appropriate machining.

What really sets these valves apart is the material and construction. They're made from Inconel, a superalloy that's incredibly resistant to high temperatures and corrosion – exactly what you want in an exhaust valve that's constantly exposed to combustion gases. To further help with heat dissipation, they feature a sodium-filled stem. The sodium inside the stem melts and circulates as the valve operates, carrying heat away from the valve face and into the cylinder head much more effectively than a standard solid stem. This advanced cooling helps prevent valve seat recession and extends the life of the valve, especially in demanding applications.

This set includes eight valves, all manufactured to be 1mm larger than the stock diameter. This oversize design is intended to be used with an engine that has had its valve seats machined to accept the larger valve. When installed correctly, this can lead to improved cylinder sealing and potentially better performance. If you're aiming for a robust rebuild on your 1.8T AEB, these valves offer a significant upgrade in durability and thermal management.