• aFe Large Bore-HD 4 IN 409 Stainless Steel Cat-Back Exhaust System w/ Polished Tip
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aFe Large Bore-HD 4in 409 SS Cat-Back Exhaust | GM Diesel Trucks 01-05 (49-44001)

aFe Large Bore-HD 4in 409 SS Cat-Back Exhaust | GM Diesel Trucks 01-05 (49-44001)

49-44001

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$712.94 USD
$808.00 USD $712.94 USD
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The aFe Mach Force XP Large Bore-HD 4-inch 409 stainless steel cat-back exhaust system is designed for GM diesel trucks from 2001 to 2005. This high-performance exhaust system features mandrel-bent 409 stainless steel tubing and a single side exit configuration, delivering an aggressive and loud exhaust note. Its primary function is to increase exhaust flow, resulting in improved horsepower and torque, while also reducing exhaust gas temperatures. Constructed with durable materials, this system enhances overall engine performance and durability. The inclusion of a muffler delete pipe further boosts exhaust flow and sound, making it an ideal upgrade for enthusiasts seeking increased power and a more aggressive sound profile.

This bolt-on system is specifically engineered for 2001-2005 GM diesel trucks, providing a direct replacement for the stock exhaust components. It is suitable for use on vehicles intended for performance enhancement, whether for street driving or off-road applications. The kit includes all necessary components for installation, ensuring a straightforward upgrade process. Designed to maximize exhaust efficiency, this system is compatible with the factory mounting points and requires no additional modifications. It is an excellent choice for those looking to improve their truck’s sound, performance, and overall exhaust flow.

Overview

Mach Force XP 409 SS Cat-Back Exhaust System with Single Side Exit by aFe. With Muffler Delete Pipe. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 4". Exhaust System Sound: Aggressive / Loud. Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Mach Force XP Cat-Back Exhaust System. aFe dyno tests every system for maximum gains, and constructs them from mandrel-bent stainless steel for maximum flow and long-lasting durability. This system begins at the Cat (Catalytic Converter).

A performance exhaust system is one of the most common ways of improving a vehicle's operation. The theory is simple; just reduce restriction to increase exhaust flow and you gain power. But all exhaust systems are not created equal; in reality there's more to it than just selling some sewer pipe sized tubes.

aFe tests its systems on the flow bench and the dynamometer to determine the right pipe size and muffler construction. Then they mandrel bend the pipes to ensure they maintain their shape and size throughout the entire length, to provide smooth, unrestricted airflow. Tubes that are not mandrel bent can lose up to 20% of their diameter in sharp bends. Some systems also include a straight muffler delete pipe if a more aggressive sound and maximum flow is desired. A typical aFe system will increase exhaust flow by up to 29% and lower EGT (Exhaust Gas Temperature) by up to 100 , with a corresponding improvement in power and performance.

But performance is only part of the equation. A quality exhaust system should be easy to install and made to last. The muffler and all pipes of the Mach Force XP system are constructed from durable 409 stainless steel. To ensure a tight seal, slotted and swedged ends are used whenever possible. When used with the supplied premium quality band clamps, the tightest, leak-free seal is the result. Every hanger is thoroughly welded on each side to ensure a strong attachment and the hangers also feature swaged bayonet ends to lock in place once installed.

aFe (Advanced Flow Engineering, Inc.) manufactures performance products for late model cars, light trucks and SUVs. The company was founded in 1999 with an initial concentration on high performance air filters. Since then, the company product line has broadened to include cold air intakes, fluid filters, exhaust systems, intake manifolds, intercoolers, programmers, differential covers, transmission pans and throttle body spacers. The team of engineers, machinists, production and sales people at aFe have many years of experience in their respective positions, and together work to ensure they produce the best automotive products on the market.

Features:

  • 4 in. Mandrel Bent 409 Stainless Steel Tubing
  • Maximum Flow
  • High Flow Muffler
  • Bayonet Style Hangers For Easy Installation
  • Polished Stainless Tip Included
  • 2 Year Limited Warranty
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