33mm 8V EXHAUST VALVE, 7mm STEM HYD

The performance potential of your engine is limited by its ability to breathe. This is a function of valve size, among other things. We feel that these intake and exhaust valves represent the optimum for the present size cylinder bores in use. They're the same valves that we use in our SportTuned Zylinderkopfen. They are high quality Original Equipment (OE) valves made by the same suppliers to most German car manufacturers. Priced individually.