The first step in controlling underhood temperatures. This product is designed to keep heat in the exhaust and evacuate it out of the engine compartment. Wrapping your headers will reduce underhood temperatures by up to 50% while providing additional horsepower, engine protection and passenger comfort. All exhaust wraps are not alike! We start with a hi-temp fiberglass composite material then add a proprietary coating to enhance heat retention and expand durability. We are also the only manufacturer to add ¼” guidelines to ensure proper installation without the guess work. * Reduce underhood temperatures a realistic 50% * Improves horsepower * Only wrap with installation guide lines * Added durability and heat retention.