Easily upgrade the looks of your diesel truck'exhaust system using this ceramic coated exhaust tip from Sinister Diesel. It works with Duramax, Cummins, and Powerstroke diesel exhaust systems, expanding the exhaust outlet to 6 inches. A black finish matches other blacked - out parts on your truck, giving that aggressive appearance you crave., Sinister Diesel makes each exhaust tip out of 304 stainless steel, so it resists corrosion. The black ceramic coating hides soot and dirt, plus it cleans up nicely. Made to fit any 5 - inch exhaust tip, the opening on the Sinister Diesel exhaust tip measures 6 inches. It simply clamps on using simple hand tools., Features5 Inlet 6 Outlet 12 Length, Black Ceramic Coating, 304 Stainless Steel Construction, Single Wall Construction with Rolled Outlet Edge, Simple 1 - Step Clamp - On Installation (No Welding Required).