Simply wrap Exhaust Wrap tightly around header or exhaust system and fasten with hose clamps or wire. Measures 50 feet by 2 inches, with a thickness of 1/16". 2 Rolls required, and you may need straps. Reduces unwanted heat in the engine and driver's compartment Increases horsepower and fuel efficiency Withstands continuous heat up to 2000 F Increases the life of engine and exhaust components, wiring and hoses Corvette Central P/N: 321326