Monster Exhaust System 5-inch Single Exit for 2011-2015 Chevy/GMC 2500/3500 + (2016 2500 Only) 6.6L Duramax, LML

5-inch 409 stainless steel constant-diameter DPF-back system. Negative backpressure SideKick tip helps lower exhaust exit temps by 15%. Improves flow and cuts backpressure by 89% from the DPF and 9% at the turbine inlet, allowing the engine to produce more horsepower. Includes Huge Polished-Chrome or Cerakote Black SideKick tip. The 5-inch Monster Exhaust designed specifically for the 2011-2016 GM 6.6L Duramax LML 2500/3500 HD pickup trucks. The DPF-back exhaust system features constant-diameter 5-inch mandrel-bent Aluminized Steel tubing and a massive tip which virtually eliminates backpressure after the DPF and prevents trailer meltdown. Key Features: 5" 409 stainless steel constant-diameter DPF-back exhaust system. 15% reduction in exhaust temperature 2 feet behind the tip during regen. Huge 6.5" x 7.5" ob-round slash-cut exhaust tip. Chrome-plated stainless tip will not turn brown with heat. 89% less backpressure at the DPF than stock exhaust. 9% less backpressure at the exhaust turbine. Ob-Round Exhaust Tip. Fits trucks with aftermarket airbags, see fitment notes section above. 1-Year Limited Warranty

89% lower backpressure from DPF, 15% lower exhaust exit temp

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Note: For 2016 3500HD models only, you will need an additional NOX bung sold separately. This will need to be welded on and installed at your local muffler shop. The bung needed is available here PN: 52255