Supertech VW/Audi 2.7T APB Sodium Filled Inconel Exhaust Valve - +1mm Oversize - Set of 12

Supertech is known for making high-performance engine components, and these sodium-filled Inconel exhaust valves are a prime example of their work for demanding applications. If you're rebuilding the top end of a VW or Audi 2.7T APB engine, especially one that sees hard use or is being modified for more power, these valves are built to handle the heat and stress. They are a +1mm oversize, meaning they are slightly larger than stock to allow for improved flow and better sealing in the cylinder head.

The key to these valves' durability is the Inconel material. This is a superalloy that's incredibly resistant to high temperatures and corrosion, making it ideal for exhaust applications where temperatures can soar. Inside the valve stem, sodium is used as a coolant. As the valve operates, the sodium melts and circulates, absorbing heat from the valve face and transferring it to the valve stem where it can dissipate. This advanced cooling helps prevent valve distortion and burning, keeping your engine running strong under extreme conditions. The +1mm oversize design is specifically chosen to optimize airflow into the combustion chamber, which can lead to improved performance when paired with other engine modifications.

This set includes 12 valves, enough for a complete engine rebuild. When installing these, remember that working on the cylinder head and valves requires precision. It's always best to refer to the manufacturer's detailed installation instructions to ensure proper seating and valve guide compatibility, especially with the oversize design. These valves are a solid choice for anyone looking to build a reliable, high-output 2.7T engine.