Description
Large Bore-HD 5” 409 Stainless Steel DPF-Back Exhaust System – 6” Polished 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, engineered for maximum performance, durability, and style. This exhaust system enhances horsepower, torque, and exhaust efficiency 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 offers superior strength, corrosion resistance, and long-lasting durability. Smooth transition bends reduce turbulence, optimizing exhaust flow and improving engine efficiency.
6” Polished Stainless Steel Tip
The system is finished with a high-luster 6” polished 304 stainless steel slash-cut tip, featuring a drain port to prevent corrosion. A laser-cut aFe POWER badge is riveted onto the tip, delivering a premium, aggressive appearance that complements your truck.
Direct Bolt-On Installation
This system installs directly to factory mounting locations using OE-style bayonet hangers and high-quality band clamps, ensuring a stable, hassle-free installation without cutting or modifications.
Leak-Free OE-Style Design
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360-degree sealing with OE-style flange and band clamps
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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 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 performance 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
Proudly engineered and manufactured in Corona, California, the Large Bore-HD 5” DPF-Back Exhaust System with 6” polished tip combines high-performance flow, OE-style precision, and aggressive polished styling—the perfect upgrade for your LML Duramax truck.
