aFe Atlas 5" Aluminized Steel DPF-Back Exhaust

2013–2018 RAM 2500 / 3500 6.7L Crew Cab

Part #: 49-02051-1P

Overview

The aFe Atlas 5" Aluminized Steel DPF-Back Exhaust is engineered specifically for the 2013 to 2018 RAM 2500 and 3500 models equipped with the 6.7L engine and Crew Cab configuration. Designed to replace the restrictive factory exhaust system from the Diesel Particulate Filter (DPF) back, this performance exhaust enhances exhaust flow and reduces backpressure. It is ideal for diesel truck owners seeking improved throttle response, better sound, and a durable upgrade that maintains a clean, factory-like appearance.

This exhaust system is perfect for enthusiasts who want to maximize their RAM’s performance without compromising reliability or requiring extensive modifications. Its large bore design and quality construction ensure long-lasting performance and a smooth exhaust note that complements the power of the Cummins 6.7L engine.

Key Features

The aFe Atlas DPF-Back Exhaust combines advanced engineering with practical design to deliver a high-quality upgrade for your RAM 2500/3500. Key features include:

• 5-inch aluminized steel tubing for enhanced durability and corrosion resistance
• 4-inch 409 stainless steel tubing in critical sections for smooth exhaust flow
• Large bore design with smooth mandrel bends to reduce exhaust restriction
• OE-style band clamps and bayonet-style hangers for straightforward, secure installation
• Polished exhaust tip that adds a refined, factory-inspired look
• DPF-back configuration designed to bolt directly to the factory Diesel Particulate Filter outlet
• Engineered to maintain proper exhaust gas flow and reduce backpressure
• Compatible with the 2013–2018 RAM 2500 and 3500 6.7L Crew Cab models

Construction & Design

The aFe Atlas exhaust system is constructed from aluminized steel tubing, which offers excellent resistance to rust and corrosion, extending the life of the exhaust in harsh environments. Critical sections utilize 409 stainless steel tubing, known for its strength and smooth interior surface that promotes efficient exhaust gas flow. The system features precision mandrel bends to maintain consistent diameter throughout, minimizing turbulence and maximizing performance.

The polished exhaust tip not only enhances the visual appeal but is also designed to resist discoloration and wear. The use of OE-style band clamps and bayonet hangers ensures a secure fit that aligns perfectly with factory mounting points, preserving the truck’s original undercarriage layout.

Installation & Fitment

This DPF-back exhaust system is designed for a direct bolt-on installation with no cutting, welding, or modifications required. The OE-style band clamps and bayonet hangers allow for a clean and straightforward installation process that can typically be completed with basic hand tools. The system fits the 2013–2018 RAM 2500 and 3500 models equipped with the 6.7L engine and Crew Cab configuration, ensuring precise compatibility and fitment.

What's Included

• 5" aluminized steel DPF-back exhaust system
• Polished exhaust tip
• OE-style band clamps
• Bayonet-style hangers
• Installation hardware and instructions

Ideal For

This exhaust system is ideal for RAM 2500 and 3500 owners who want to improve exhaust flow and sound quality without sacrificing durability or requiring complex installation. It suits diesel truck enthusiasts looking for a reliable upgrade that enhances performance and complements the power of the 6.7L Cummins engine. Whether for daily driving, towing, or light performance use, the aFe Atlas DPF-Back Exhaust delivers a balanced combination of style, function, and longevity.

aFe POWER (Advanced FLOW Engineering) offers dyno-proven intake, filtration, and exhaust upgrades aimed at measurable performance gains. The brand’s lineup is geared toward enthusiasts looking for better airflow, improved sound, and durable materials—from cold air intakes to stainless exhaust systems for street and track applications.