THERMO TEC / COOL IT exhaust heat protection wrap is a simple way to lower engine compartment temperatures and thus increase performance. By wrapping the manifold, radiated heat can be reduced. Cool-It Exhaust Insulation Wrap can withstand continuous temperatures of up to 1000°C and, when properly installed, does not over-insulate. Cool-It Copper Exhaust Wrap offers up to 30 percent greater heat resistance thanks to a new copper coating that conducts heat across the surface.