Kibblewhite Precision Exhaust Valve - Standard - M8 - 20-21016H

Extensive R&D on all applications to provide high-performance components that last longer than OEM. Black Diamond valves are one-piece forgings made from 21-4N high-performance stainless steel. Trademarked Black Diamond treatment provides a stem that has a longer life capacity. Keepers not included; use OEM keepers and bases, as noted. All components made in the U.S.A..