• aFe Large Bore-HD 4in 409 Stainless Steel DPF-Back Exhaust System w/ Polished Tip
  • aFe Large Bore-HD 4in 409 Stainless Steel DPF-Back Exhaust System w/ Polished Tip
  • aFe Large Bore-HD 4in 409 Stainless Steel DPF-Back Exhaust System w/ Polished Tip
  • aFe Large Bore-HD 4in 409 Stainless Steel DPF-Back Exhaust System w/ Polished Tip
  • aFe Large Bore-HD 4in 409 Stainless Steel DPF-Back Exhaust System w/ Polished Tip
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aFe Large Bore-HD 4in 409 SS DPF-Back Exhaust GM Diesel Trucks 11-16 V8-6.6L LML (49-44043-P)

aFe Large Bore-HD 4in 409 SS DPF-Back Exhaust GM Diesel Trucks 11-16 V8-6.6L LML (49-44043-P)

49-44043-P

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$768.53 USD
$871.00 USD $768.53 USD
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The aFe Large Bore-HD 4-inch 409 stainless steel DPF-Back Exhaust System is designed for GM diesel trucks from 2011 to 2016 equipped with the V8 6.6L LML engine. This system features a split side exit configuration and a large 4-inch main tubing diameter, engineered to optimize exhaust flow. Constructed from mandrel-bent 409 stainless steel, it offers durability and corrosion resistance. The exhaust delivers a moderate sound level, enhancing the vehicle’s performance without excessive noise. By increasing exhaust flow, this system helps boost horsepower and torque, while also reducing exhaust gas temperatures, contributing to improved engine efficiency and longevity. Each system is dyno-tested by aFe to ensure maximum performance gains, making it a reliable upgrade for diesel enthusiasts seeking enhanced power and sound.

This DPF-back exhaust system is a direct bolt-on replacement for compatible GM diesel trucks within the specified year range. It is suitable for use on vehicles that require a performance upgrade to improve exhaust flow and overall engine response. The kit includes all necessary components for installation, providing a straightforward upgrade path for street and off-road applications. Designed to fit models with the 6.6L LML engine, it is ideal for those looking to increase horsepower, torque, and exhaust efficiency. This system is perfect for daily drivers, towing, or off-road use, offering a balanced combination of performance, durability, and moderate sound enhancement.

Overview

Large Bore HD 409 SS DPF-Back Exhaust System with Split Side Exit (49-44043-P) by aFe. Single To Dual Exhaust Conversion. Exhaust System Type: DPF-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 4". Exhaust System Sound: Moderate. Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Large Bore HD DPF-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.

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. 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. 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 pipes of the Large Bore HD 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. The factory mounting locations are used throughout and a 2-piece tailpipe facilitates adjustment.

Every system comes with clamps, hangers and detailed instructions to guide you through the installation. The Large Bore HD Exhaust System is made in USA.

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
  • Dual 6in. Polished Tips w/Laser Cut aFe Badges
  • Increased Flow And Performance
  • High Quality Band Clamps
  • Bayonet OE-Style/Welded-On Hangers
  • Aggressive Sound
  • Street Legal Exhaust
  • Does Not Effect Spare Tire
  • Hassle Free Installation
  • Direct Bolt On
  • 2 Year Limited Warranty
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