Description
aFe Large Bore-HD 5" 409 Stainless Steel DPF-Back Exhaust System
For 6.7L Cummins Powered Ram Trucks (2007–2012)
Upgrade the performance, sound, and durability of your 6.7L Cummins with the aFe Large Bore-HD DPF-Back Exhaust System. Engineered for maximum flow and long-term reliability, this exhaust system is constructed from 5-inch mandrel-bent 409 stainless steel tubing, delivering improved exhaust velocity, reduced backpressure, and lower exhaust gas temperatures (EGTs).
Designed as a direct-fit DPF-back system, it utilizes all factory mounting points for a quick, hassle-free installation with no cutting or modifications required. High-quality OE-style flanges, band clamps, and bayonet hangers ensure a secure, leak-free seal and maintain proper pipe alignment even under high heat and vibration.
Performance is further enhanced by smooth mandrel bends that promote laminar exhaust flow, helping to increase horsepower and torque while improving overall engine efficiency. Completing the system is a massive 6-inch polished 304 stainless steel slash-cut exhaust tip, featuring a laser-cut stainless steel aFe power badge and an integrated drain port to resist moisture buildup and corrosion.
Manufactured and engineered in Corona, California, the aFe Large Bore-HD exhaust system delivers the ideal balance of performance, fitment, sound, and value for Cummins owners who demand quality.
Key Features & Benefits
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5" Mandrel-Bent 409 Stainless Steel Tubing for maximum exhaust flow
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DPF-Back Configuration – emissions-friendly design
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Improves Horsepower, Torque & Lowers EGTs
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OE-Style Bayonet Hangers for stable, long-term fitment
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High-Quality Band Clamps & Flanges for a leak-free seal
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6" Polished 304 Stainless Steel Exhaust Tip with aFe badge
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Drain Port in Tip to reduce rust and corrosion
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Uses Factory Mounting Locations for easy installation
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Made in the USA – engineered and manufactured by aFe Power
Vehicle Fitment
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2007–2010 Dodge Ram 2500 – 6.7L Cummins Diesel
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2007–2010 Dodge Ram 3500 – 6.7L Cummins Diesel
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2011–2012 Ram 2500 – 6.7L Cummins Diesel
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2011–2012 Ram 3500 – 6.7L Cummins Diesel
Emissions Notice
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CARB EO# Not Required
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Designed to retain factory emissions equipment (DPF-Back system)
