The Supertech black-nitrided exhaust valve for VW 1.8L and 2.0L 8V applications is supplied as a set of four with a +1mm oversize. The nitrided surface treatment enhances surface wear properties for exhaust service while the oversize option supports valve seat work. Supplied in matched sets to preserve consistent fit and sealing when replacing multiple valves.
Supertech VW 1.8L/2.0L 8V Black Nitrided Exhaust Valve - +1mm Oversize - Set of 4