aFe Large Bore-HD Cat-Back Exhaust System

2004.5–2007 Dodge Ram 2500 / Ram 3500 5.9L Cummins

Part #: 49-42012

Overview

The aFe MACH Force XP 5" Cat-Back Exhaust System is a high-performance upgrade designed specifically for 2004.5 to 2007 Dodge Ram 2500 and Ram 3500 trucks equipped with the 5.9L Cummins engine. Crafted for enthusiasts seeking enhanced power, durability, and an aggressive exhaust tone, this system improves horsepower and torque while reducing exhaust gas temperatures. It offers a perfect balance of performance gains and sound quality without compromising factory fitment or reliability, making it ideal for both daily driving and heavy-duty applications.

Built to endure demanding driving conditions, the MACH Force XP exhaust system delivers a robust exhaust note and long-lasting construction. Its direct bolt-on design ensures a hassle-free installation, allowing you to maximize your truck’s potential quickly and efficiently.

Key Features

This cat-back exhaust system incorporates advanced engineering and premium materials to optimize performance and durability. Key features include:

• 5" mandrel bent 409 stainless steel tubing for superior exhaust flow and corrosion resistance
• Cat-back design with a free-flowing 24" long muffler that reduces high-pitched tones and enhances sound quality
• OE style bayonet hangers for secure pipe positioning under high vibration and heat conditions
• High-quality OE style band clamps providing a 360-degree leak-free seal
• Polished 304 stainless steel slash-cut exhaust tip with a drain port to prevent rust and corrosion
• Factory mounting locations for straightforward, bolt-on installation without cutting or welding
• Smooth mandrel bends to minimize turbulence and maximize horsepower and torque gains
• Excludes fitment for Dodge Ram Cab & Chassis models

Construction & Design

The MACH Force XP exhaust system is constructed from premium 409 stainless steel tubing, known for its excellent corrosion resistance and strength. The 5" mandrel bends maintain a consistent diameter through curves, ensuring smooth exhaust flow that reduces backpressure and turbulence. This efficient design enhances engine performance and power output.

Attention to detail is evident in the OE style bayonet hangers, which securely mount the exhaust system to prevent movement and wear over time. The polished 304 stainless steel slash-cut exhaust tip not only adds a sleek, high-luster finish but also features a drain port to prevent moisture buildup, extending the system’s longevity.

Performance & Sound

The MACH Force XP system unlocks your Dodge Ram’s full performance potential by increasing horsepower and torque while lowering exhaust gas temperatures. Its free-flowing muffler design absorbs unwanted high-frequency tones, delivering a deep, aggressive exhaust note that enhances the driving experience without excessive drone. This system is perfect for drivers seeking a commanding sound that remains comfortable for daily driving and heavy-duty use.

Installation & Fitment

Installation is straightforward with a direct bolt-on design that uses all factory mounting points. The system employs OE style band clamps and bayonet hangers to ensure a secure, leak-free fit without the need for cutting or welding. This makes installation quick and hassle-free for both professional installers and experienced DIY enthusiasts.

Please note this exhaust system is specifically designed for 2004.5–2007 Dodge Ram 2500 and Ram 3500 trucks with the 5.9L Cummins engine and does not fit Dodge Ram Cab & Chassis models.

What's Included

• 5" mandrel bent 409 stainless steel cat-back exhaust piping
• Free-flowing 24" long muffler
• Polished 304 stainless steel slash-cut exhaust tip with drain port
• OE style band clamps for leak-free sealing
• OE style bayonet hangers and mounting hardware

Ideal For

This exhaust system is ideal for Dodge Ram 2500 and 3500 owners who want to improve their truck’s performance and sound without sacrificing factory fitment or reliability. It suits enthusiasts who tow, haul, or simply desire a more aggressive exhaust tone and enhanced engine efficiency for daily driving or heavy-duty use.

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.