Description
Large Bore-HD 5” 409 Stainless Steel DPF-Back Exhaust System – 7” Wrinkle-Black Tip for 2011–2016 Chevy & GMC 2500/3500 HD LML Duramax
Upgrade your LML Duramax with the Large Bore-HD 5” DPF-Back Exhaust System from aFe POWER. Designed for maximum flow, durability, and aggressive styling, this exhaust delivers improved horsepower, torque, and reduced exhaust gas temperatures (EGTs) while maintaining precise factory-style fitment.
5” Mandrel-Bent 409 Stainless Steel Construction
Constructed from 5-inch mandrel-bent 409 stainless steel tubing, this system provides superior strength, corrosion resistance, and long-lasting performance. Smooth transition bends optimize airflow and reduce turbulence, maximizing engine efficiency.
Massive 7” Wrinkle-Black Stainless Steel Tip
Finished with a 7-inch wrinkle-black powder-coated 304 stainless steel tip, this system features a drain port to prevent corrosion and a laser-cut aFe POWER logo plate riveted for an aggressive, high-performance appearance.
Direct Bolt-On Installation
This exhaust installs using factory-style hangers and high-quality band clamps, providing hassle-free, stable installation without cutting or modifications. OE-style bayonet hangers maintain precise pipe alignment during high heat and vibration for a long-lasting OE-style fit.
Flow and Performance Benefits
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5” mandrel-bent stainless steel tubing for maximum exhaust flow
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Smooth bends minimize turbulence, increasing horsepower and torque
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Reduces exhaust gas temperatures (EGTs) for improved engine efficiency and longevity
Fitment Note:
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Does not fit 2016 3500HD models equipped with NOX sensors
Compatible Models:
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2011–2016 Chevrolet Silverado 2500 HD Diesel V8 6.6L (td) Duramax
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2011–2016 Chevrolet Silverado 3500 HD Diesel V8 6.6L (td) Duramax
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2011–2016 GMC Sierra 2500 HD Diesel V8 6.6L (td) Duramax
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2011–2016 GMC Sierra 3500 HD Diesel V8 6.6L (td) Duramax
Emissions Compliance:
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CARB EO# not required
Engineered and manufactured in Corona, California, the Large Bore-HD 5” DPF-Back Exhaust System with 7” black tip offers high-performance flow, rugged durability, and aggressive styling—the ultimate upgrade for your LML Duramax truck.
