This Supertech black nitrided intake valve is supplied as a single replacement for Audi and VW 1.8T 5-valve engines and is available via drop-ship. The product title specifies a black nitride finish and the 1.8T 5V application, indicating it is intended as an intake valve service part for the stated Audi/VW cylinder heads where individual intake valves are replaced.
Supertech Audi/VW 1.8T 5V Black Nitrided Intake Valve - Single (Drop Ship Only)