Thermo Tec 2″ x 100 ft Natural Reduces under-hood temperatures up to 70 percent. increases horsepower and fuel efficiency withstands continuous heat up to 2000 deg f increases life of the engine and electronic system components. the original exhaust insulating wrap was developed almost 20 years ago by thermo-tec. exhaust insulatin gwrap is an innovative way to create more horsepower and reduce temperatures under the bonnet. wrapping headers with exhaust insulating wrap maintains hotter exhaust gases that exit the system faster through decreased density. this produces increased exhaust scavenging as well as lower intake temperatures. exhaust insulatin wrap withstands continuous heat up to 2000 deg f. it contains no asbestos. thermo-conductive- technology specially developed by thermo-tec that conducts heat across the wrap”s surface. this unique coating controls heat buildup and dissipation. exhaust insulating wrap available in natural and graphite black colours is sold in 15 and 50 foot rolls 1 and 2 inches wide. all exhaust wrap has a low profile 1/16 inch thickness.