Audi 5cyl. S2 & RS2 intake Valves SUPERTECH

Black nitrided intake valves from Supertech for Audi S2 & RS2 5 cylinder turbo engines.The VAG standard valves have the major disadvantage that they can break in engines with a significant increase in power or with long mileage.The standard valves are hollow inside and sodium-cooled. With the very thin valve stem, there is not much material left to protect the valve!Supertech valves offer the following advantages: High temperature resistance Strong tear resistance High-strength material Black nitrided Available in original size as well as 0.5mm and 2mm oversize.The valve seat must be adapted for oversize valves.The kit contains 10 valves without valve wedges. Suitable Supertech wedges are required. These can be found below at accesories.