aFe Atlas Exhaust System

2013–2018 RAM 2500/3500 6.7L

Part #: 49-02039-P

Overview

The aFe Atlas 5" Aluminized Steel DPF-Back Exhaust with Polished Tip is a premium upgrade designed specifically for 2013 to 2018 RAM 2500 and 3500 trucks equipped with the 6.7L engine. This exhaust system replaces the factory Diesel Particulate Filter (DPF) back section, offering enhanced flow and durability while maintaining a clean, polished appearance. Ideal for diesel truck owners seeking improved performance, reduced exhaust gas temperatures, and a hassle-free installation, the Atlas exhaust delivers a balanced combination of power, reliability, and style.

Engineered to optimize exhaust flow, this system is perfect for enthusiasts who want to maximize their RAM’s horsepower and torque without compromising factory fitment or requiring extensive modifications.

Key Features

The aFe Atlas DPF-Back Exhaust system incorporates advanced design elements and quality components to ensure superior performance and longevity:

• Constructed from 5-inch mandrel-bent aluminized steel tubing for enhanced durability and corrosion resistance
• Smooth transition bends reduce turbulence, promoting better exhaust flow and increased engine efficiency
• Includes high-quality band clamps and OE-style bayonet hangers for secure and vibration-free mounting
• Polished stainless steel exhaust tip adds a refined, factory-inspired finish
• Utilizes all factory mounting locations for a direct bolt-on installation with no cutting or welding required
• Designed to lower exhaust gas temperatures (EGTs), contributing to improved engine longevity
• Manufactured in aFe’s Corona, California facility, ensuring strict quality control and craftsmanship

Construction & Design

The Atlas exhaust system is built from aluminized steel, chosen for its excellent resistance to rust and heat, making it well-suited for the demanding conditions of diesel truck applications. The 5-inch tubing is mandrel bent to maintain consistent diameter throughout bends, minimizing flow restrictions and backpressure. This precise engineering results in smoother exhaust gas movement and improved overall engine performance.

Attention to detail is evident in the use of OE-style bayonet hangers, which replicate factory mounting points to provide a secure fit and reduce noise or rattling. The polished tip not only enhances the visual appeal but also resists discoloration and corrosion over time.

Performance & Sound

The Atlas DPF-Back exhaust system is designed to improve horsepower and torque by optimizing exhaust flow and reducing backpressure. Its smooth bends and larger diameter tubing help lower exhaust gas temperatures, which can contribute to better engine efficiency and durability. While maintaining a subtle and refined exhaust note, this system provides a deeper and more aggressive sound compared to the stock exhaust, enhancing the driving experience without being overly loud or intrusive.

Installation & Fitment

This exhaust system is engineered for a direct bolt-on installation using all factory mounting points, eliminating the need for cutting, welding, or additional modifications. The included high-quality band clamps and OE-style bayonet hangers ensure a secure and vibration-free fit. Installation can typically be completed with basic hand tools, making it accessible for both professional installers and experienced DIY enthusiasts. Designed specifically for 2013–2018 RAM 2500 and 3500 models with the 6.7L engine, it guarantees perfect compatibility and fitment.

What's Included

• 5" mandrel-bent aluminized steel DPF-back exhaust tubing
• Polished stainless steel exhaust tip
• High-quality band clamps
• OE-style bayonet hangers
• Installation hardware and instructions

Ideal For

The aFe Atlas 5" Aluminized Steel DPF-Back Exhaust is ideal for RAM 2500 and 3500 owners who want to enhance their truck’s performance and sound without sacrificing factory fitment or requiring complex installation. It suits diesel enthusiasts looking to reduce exhaust gas temperatures, increase horsepower and torque, and add a polished, professional appearance to their exhaust system. Whether for daily driving, towing, or light performance upgrades, this exhaust system offers a reliable and effective solution.

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.