Thermo-Tec 16500 Muffler/Catalytic Converter Heat Shield The highly-reflective heat shield can be installed between the catalytic converter, muffler or any other component to reflect radiant heat away from the undercarriage of the car This versatile heat shield has an unlimited number of applications; the kit includes all necessary fasteners The mylar material is easily cleaned with soap and water to retain its reflective quality and attractive appearance The fabric side is attached to the undercarriage and can handle temperatures up to 1200 degrees Fahrenheit The mylar foil side is pointed toward the heat source and can withstand radiant heat temperatures up to 2000 degrees Fahrenheit