The Supertech triple-groove black nitride exhaust valve is a single replacement for Audi and VW 1.8T 5-valve engines and is available as a drop-ship item. The listing calls out a triple groove and a black nitride finish, identifying the valve's groove configuration and surface treatment for use as an individual replacement component in compatible 1.8T 5V engines.
Supertech Audi/VW 1.8T 5V Triple Groove Black Nitride Exhaust Valve - Single (Drop Ship Only)