Diamond Power Intake Exhaust Engine Valves Kit works with Chevrolet Aveo 1.6L DOHC VIN"6" 2 Year Warranty (This product must be installed by a certified professional mechanic) Same day shipping when purchased before 3pm EST Our products are tested and meet or exceed OEM performance requirements Fits 04-08 Fits Chevrolet Aveo5 1.6L DOHC Engine Valves are made with excellent quality materials (Nickel, Chrome and Tungsten)