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
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 2015-2016 |
Chevrolet |
Silverado 2500 HD |
High Country |
| 2011-2016 |
Chevrolet |
Silverado 2500 HD |
LT |
| 2011-2016 |
Chevrolet |
Silverado 2500 HD |
LTZ |
| 2011-2016 |
Chevrolet |
Silverado 2500 HD |
WT |
| 2015 |
Chevrolet |
Silverado 3500 HD |
High Country |
| 2011-2015 |
Chevrolet |
Silverado 3500 HD |
LT |
| 2011-2015 |
Chevrolet |
Silverado 3500 HD |
LTZ |
| 2011-2015 |
Chevrolet |
Silverado 3500 HD |
WT |
| 2015-2016 |
GMC |
Sierra 2500 HD |
Base |
| 2011-2016 |
GMC |
Sierra 2500 HD |
Denali |
| 2011-2016 |
GMC |
Sierra 2500 HD |
SLE |
| 2011-2016 |
GMC |
Sierra 2500 HD |
SLT |
| 2011-2014 |
GMC |
Sierra 2500 HD |
WT |
| 2015 |
GMC |
Sierra 3500 HD |
Base |
| 2011-2015 |
GMC |
Sierra 3500 HD |
Denali |
| 2011-2015 |
GMC |
Sierra 3500 HD |
SLE |
| 2011-2015 |
GMC |
Sierra 3500 HD |
SLT |
| 2011-2014 |
GMC |
Sierra 3500 HD |
WT |
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
The AutoHouse Advantage: Global sourcing power paired with specialized expertise. We utilize an expansive supply network of over 600,000 SKUs to deliver world-class components with an enthusiast’s precision.
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Fitment Guarantee:
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Fitment Guarantee
Fitment guides and tools are helpful—but your car is unique! Some trims and options aren’t always listed, so if you want 100% confidence that a part will fit, our team is happy to double-check for you. We take the guesswork out of your purchase by standing behind our expertise.
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