5" 409 stainless steel constant-diameter DPF-back exhaust system with negative-backpressure SideKick tip. Improves throttle response and fuel economy by lowering backpressure up to 9% at the turbine inlet. Allows the engine to exhale and breathe more efficiently. Includes huge chrome obround SideKick tip. The new 5" Monster Exhaust designed specifically for the 2019-2023 Ram 2500/3500 6.7L. The DPF-back exhaust system features constant-diameter 5" mandrel-bent 409 stainless steel tubing and a massive tip which virtually eliminates backpressure after the DPF.Cummins owners can choose from two huge 6.5" x 7.5" ob-round slash-cut exhaust tips; chrome-plated polished stainless steel or high-temp Cerakote matte black with a rolled edge.Key Features: Virtually eliminates backpressure after the DPF. Constant-diameter 5" mandrel-bent 409 Stainless steel tubing. Less backpressure than stock. Huge 6.5" x 7.5" ob-round slash-cut exhaust tip. Chrome-plated stainless tip will not turn brown with heat. 1-year Limited Warranty. Ob-Round Exhaust Tip Patent No. D558,111