Supertech Single Black Nitrided Intake Valve Audi | Volkswagen VR6 2.8L 1992-2000 | VWIVN-1007

Supertech uses over 20 years of manufacturing experience todesign and produce their Valves. Intensive testing and workingclosely with engine builders provides continuous improvements andprovides the market with the best possible product for everyapplication. High flow rate, durability and quality are all ofgreat concern.Supertech understands that each motor is unique in itsrequirement and demands. There fore Supertech offers valves in arange of materials to suit any motor.Stainless Made as a one piece forged valve for higherstrength and reliability. Supertech uses mostly EV8(21-4N) for Intake and Exhaust Valves, however there are otheralloys that are used with different heat treatments to manufactureValves for specific applications.To address the issue of high heat, Supertech uses two differenttypes of coatingsChrome Coating Widely used in performance valvesBlack Nitride This is a hardening treatment that provides asmooth surface then chromed valves and produces less frictionbetween stem and guide.Inconel 751 Nickel Base Alloy Nickel base alloy is used forexhaust valves that reach very high temperatures, such as those inturbo or supercharged applications.Supertech Valves are sold Per Valve. ForExample, when order for a Model that requires 16 Valves, orderQuantity 16