Thermotec High Velocity Exhaust Jackets (TT11248)EXHAUST JACKET KIT 8 CYL 8 Cylinder Kit Part Number: TT11248 The Quick Wrap High Velocity Exhaust Jacket is an innovative way to insulate and block radiant heat, using Thermal Conductive Technology. The jacket covers the tubes vertically allowing for a consistent fit. This allows the exhaust system to expand without restriction as it comes up to operating temperature and provides air space for added insulation. High Velocity Exhaust Jackets can be