aFe 49-02078-B Atlas 5" DPF-Back Exhaust for 19-24 Dodge Cummins 6.7L Diesel

Vehicle Fitment

• 2019-2024 RAM 2500/3500 6.7 L Cummins diesel (Crew & Mega Cab, Short Bed; WB 149"/160")

Fitment Notes

• DPF-back system--replaces factory DPF to rear extension
• Includes factory-style hangers and OE-style bayonet tip mount
• Excludes long-bed (e.g. Crew Long Bed) and non-Cummins models
• CARB-exempt; NOT for gas models

Features

• 5" mandrel-bent aluminized steel tubing for strength and corrosion resistance
• Smooth-flow muffler designed for increased flow and mild tone
• 7" black stainless steel clamp-on tip with aFe logo for style
• 100% MIG-welded joints for durability
• Factory-style hangers and OE bayonet tip mount--bolt-on fitment
• CAD-engineered for precise factory alignment and fit
• Unrestricted exhaust path--boosts horsepower, torque, and lowers EGTs
• Manufactured in California, USA

Specifications

• Tube diameter: 5" (aluminized steel); Tip diameter: 7" black-tip stainless
• Exit: Passenger-side rear; System style: DPF-back
• Wheelbase fit: 149" (Crew Cab) & 160" (Mega Cab)
• Non-CARB gas model exempt; Diesel only
• Warranty: 2-year manufacturer coverage

Included Components

• 1x Aluminized steel DPF-back piping & muffler assembly
• 1x 7" black stainless steel clamp-on tip
• All OE-style hangers, clamps, bolts, and gaskets
• Installation hardware and 2-year warranty documentation

Product Description

The aFe Atlas 49-02078-B DPF-back exhaust system is engineered for 2019-2024 RAM 2500/3500 trucks equipped with the 6.7 L Cummins diesel engine (Crew and Mega cabs with Short Bed and 149" or 160" wheelbases). Built with mandrel-bent 5" aluminized steel, it replaces the restrictive factory DPF, offering a smooth and free-flowing exhaust path to the rear.

Featuring a 7" black stainless steel clamp-on tip with bold aFe branding, this system strengthens your rig with fewer bends, a smooth-flow muffler, 100% MIG-welded construction, and CAD-designed hangers for hassle-free bolt-on installation. It enhances horsepower, torque, and lowers exhaust-gas temperatures, delivering improved performance and efficiency--all made in California and backed by a 2-year warranty.