Features Rated for 2000 degree Fahrenheit continuous use 3000 degree Fahrenheit intermittent Header wrap reduces under hood temperatures up to 50 percentage Inferno header wrap increases horsepower Header heat wrap rolls are 1/16 inches thick Size:2 Wide x 50 Feet Tired of your Brand X advertised 2000F header wrap becoming brittle and falling apart then look no further than Their Inferno Header Wrap to solve the problem. Unlike fiberglass and basalt exhaust wraps (which should have an advertised operating temperature of 1200F); Their header wrap is made from silica filament yarn this makes this header wrap strong and flexible while operating at its designed operating temperature of 2000F continuous and 3000F intermittent. Inferno header wrap will sustain the extreme temperatures that your glowing pipes from turbo down pipe header manifold or racing applications require. Simply put there is not a header or exhaust insulating wrap on the market that will take higher temperatures and last longer. You can actually wrap the header with Inferno Wrap run it heat it up and then unwrap Their Inferno Wrap from the header when needed. Fasten header wrap with Thermal-Tie hose clamps or wire..