Our XT Series Universal Reduced Exhaust Tips are made to fit muffler equipped trucks, trucks with DPF systems, and trucks with legacy exhaust systems. These stack tips are designed to allow the same reduced exhaust tip to be installed on non-dpf trucks, or on current production vehicles. Featuring a superb finish and shine; these durable and great-looking premium XT Series Universal Fit Exhaust Stacks come in two diameters, 6 and 7 inches, two lengths, 36 and 48 inches, and three tip styles, Boilermaker, Slash Cut, and Stove Pipe. Each stack tip is specifically designed to fit 6 and 7" exhaust kits on your truck. RoadWorks Exhaust Stacks are the best in the industry!