This Supertech Inconel exhaust valve is supplied as a single replacement for Audi/VW 1.8T 5-valve engines and is available as a drop-ship item. The valve's Inconel construction is noted in the product listing, and the item is intended to serve as a direct replacement part for one exhaust port on compatible 1.8T 5V engine cylinder heads.
Supertech Audi/VW 1.8T 5V Inconel Exhaust Valve - Single (Drop Ship Only)