This is a COMPLETE EXHAUST KIT of 8 valves. 8 exhaust valves of your specification.
Supertech's stainless valves are made of SAE EV8 stainless steel, a grade of austenitic stainless with high chromium and manganese content that has been developed specifically for high-temperature valve use. The slight necking-down of the valve stem means there's less blockage of incoming airflow, and the black nitrided finish provides a hard, smooth exterior while the underlying steel structure retains ductility.
For high output turbo applications we recommend the INCONEL option for it's far superior ability to handle high EGT's (exhaust gas temperatures).
- 8x Exhaust Valves