Audi 5cyl. S2 & RS2 Auper Alloy exhaust valves FERREA

Super Alloy Exhaust Valve by Ferrea made of very tough steel for all Audi S2 & RS2 5 cylinder Turbo engines.VAG OEM-valves have the big disadvantage that they can easily break because inner hole for the natrium cooling.The valves from Supertech have the following advantages: Withstands high temperatures Very tear-resistant High performance steel. Super Alloy Super Alloy valves by Ferrea ar made of extreme heat resistant alloy.The Ferrea Super Alloy are suitable for engines with turbocharged and nitrous oxide injection where high exhaust gas temperatures can be reached.Available in OEM size or 0,5mm oversize.At 0,5mm oversize valves, the valve seat must be adjusted.The kit includes 10 valves.Ferrea is also used in major racing series such as Formula 1, Indy, Nascar and drag racing.