REVV-EM® Exhaust Heat Wrap - 15MREVV EM Exhaust Heat Wrap 15M The benefit of an exhaust heat wrap is that it reduces engine temperature. The more heat you remove from the bike, the better it will run. Therfore the exhaust can do a better job of dispelling it, resulting in a better running engine. Designed to provide maximum effenciency, protection & style. Easy application. Insulates exhaust for maximum fuel burn and consumption. Width: 50mm Thickness: 3. 5mm