Control heat in headers and exhaust pipes for additional horsepower and reduce unwanted heat in the engine and driver’s compartment. Easy to install, and free of asbestos. Keeping exhaust gasses hotter within the system helps in decreasing density and improves the flow of the gases. This improves exhaust scavaging, which in turn, reduces intake temperatures. The overall result is an improvement in overall performance of the exhaust system and thus an improvemnt in engine performance.