SKU: 505094722

aFe Large Bore-HD 4 IN 409 Stainless Steel DPF-Back Exhaust System w/Polished Tip (49-44085-P)

Sale price$242.82 Regular price$269.80
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Description

aFe Large Bore-HD 4 IN 409 Stainless Steel DPF-Back Exhaust System w/Polished Tip (49-44085-P)Large Bore HD 409 SS DPF Back Exhaust System with Single Side Exit (49 44085 P) by aFe. Exhaust System Type: DPF Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 5". 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

Large Bore HD 409 SS DPF-Back Exhaust System with Single Side Exit (49-44085-P) by aFe. Exhaust System Type: DPF-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 5". 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:

  • Mandrel Bent 409 Stainless Steel Tubing
  • High Quality Band Clamps
  • OE Style Bayonet Hangers
  • Factory Mounting Locations
  • Quick Hassle Free Installation
  • Massive Polished Stainless Steel Intercooled Tip
  • Tip w/Laser Cut Stainless Steel aFe Power Badge
Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 505094722

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Naomi
Waukegan, US
★★★★★ 5
Great product!
Format: Paperback
Passed AANP first time! Definitely recommend!
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Reviewed in the United States on March 30, 2025
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M.D.
Lexington, US
★★★★★ 5
Definitely Recommend
Format: Paperback
This book is very helpful and I definitely recommend it as a resource. It simplifies complex concepts and is organized by body system. It highlights the major health conditions in each body system and provides a simple and concise explanation. At the end of every concept a mini quiz is offered to test comprehension. I’ve found this book very useful during the semester and I’m sure I’ll find it helpful for boards.
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Reviewed in the United States on March 21, 2024
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Andrew Strom
Boise, US
★★★★★ 5
Great study aid
Format: Paperback
I worked through this book and used the on-line accompaniment prior to testing for my NP license. I passed, so I’d say it was effective!
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Reviewed in the United States on April 27, 2025
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LadyRN
Port Orchard, US
★★★★★ 4
It's good but Leik is better
Format: Paperback
This is a fairly good review book for the FNP exam and I've had professors recommend it's use. However, the review book by Leik is better in that it delivers information in a short-and-sweet way that still covers the most crucial information. Fitzgerald requires a little more reading and unfortunately I just don't have the attention span for that anymore. I need short paragraphs, bullet points, and the most crucial information that will give me success for the FNP exam and Leik provides that a little more than this.
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Reviewed in the United States on December 11, 2023
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Amazon Customer
West Palm Beach, US
★★★★★ 5
Pick this one
Format: Paperback
One of my favorite review books. Used mostly while in the program to supplement the learning. Have recommended a lot.
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Reviewed in the United States on July 14, 2025

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