Supertech VW 1.8L/2.0L 8V Black Nitrided Exhaust Valve - +1mm Oversize - Set of 4

This is a set of four Supertech exhaust valves designed for VW 1.8L and 2.0L 8-valve engines. These valves are +1mm oversize, meaning they are slightly larger than stock, which can help improve sealing and performance when rebuilding or repairing your cylinder head. The black nitriding treatment on the valve surface adds a layer of hardness and wear resistance, helping them stand up to the heat and stress of the combustion cycle.

When you're working on the top end of your VW engine, especially if you're dealing with worn valve seats or looking for a slight performance improvement, these oversize valves are a solid option. The +1mm sizing is a common choice for mild performance builds or when resurfacing the valve seats requires removing a bit more material than stock valves would allow. The nitriding process not only makes the valve surface tougher but also helps reduce friction, which is beneficial for valve train longevity.

If you're rebuilding your cylinder head, these valves are a direct replacement for the stock units, but remember they are oversize. Ensure your valve guides and seats are properly prepared or machined to accept the larger diameter for a perfect seal. This set includes all four exhaust valves needed for your engine.