50 FT Thermal Wrapping White Heat Tape for Exhaust Manifold HeadersHeat Resistant 50 FT Thermal Wrapping White Heat Tape Insulates Exhaust Systems: Reduces radiant under hood heat by insulating exhaust manifolds, lowering intake temperatures and improving exhaust gas scavenging. The Stock Heat Soak Problem Factory cast exhaust manifolds and aftermarket tubular headers radiate massive amounts of thermal energy directly into the engine bay. This radiant heat causes severe heat soak, dramatically increasing intake air