Product description Exhaust thermal wrap is an innovative way to creat more horsepower and reduce underhood temperatures Reduces heat under hood up to 70%, more horsepower Keep exhaust heat under wrap, protects drivers and mechanics from burns For use on all internal combustion engines Contains no asbestos or carcinogens Made of High Quality Pulverized Lava Rock Converted Silicate Fiber Material for Maximum Heat and Wearing Resistance Withstands temperature up to 2000 fahrenheit