Evergreen IEV9018 97-06 Audi A4 TT Quattro Volkswagen Beetle Goft Jetta Passat 1.8 DOHC Turbo Intake Exhaust Valves Fits: 97-06 Audi A4 TT Quattro Volkswagen Beetle Goft Jetta Passat 1.8L DOHC Turbo (see description below) Chromium nitride coating valves offer high microhardness while super smooth surface finish reduces friction between stem and guide Increased durability and less wear under extreme conditions, easily lasting 3 times longer than the OEM valves A one-piece, forged construction offers high strength and fatigue properties Will work with stock springs and valve-train, without the need of any further piston, head, or engine modifications