Feature●The Thermo-Tec wrap effectively improves the scavenging of exhaust gases by the headers from the engines combustion chambers●Wrapping headers maintains hotter exhaust gases that exit the system faster through decreased density●Exhaust Insulating Wrap withstands continuous heat up to 2000 degrees Fahrenheit and contains no asbestos●Thermo-Tec exhaust wrap will not over-insulate a system when properly installedDescription The Graphite Black Exhaust Insulating Header Wrap was developed over 12 years ago by Thermo-Tec. Exhaust Insulating Header Wrap is an innovative way to create more horsepower and reduce under-hood temperatures.