SKU: 86756471894

aFe Large Bore-HD 4 IN 409 Stainless Steel DPF-Back Exhaust System w/Polished Tip (49-44043-P)

Sale price$372.36 Regular price$413.73
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Ships within 48 hours · Estimated delivery Aug 28 - Sep 2

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Description

aFe Large Bore-HD 4 IN 409 Stainless Steel DPF-Back Exhaust System w/Polished Tip (49-44043-P)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,

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
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 86756471894

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Verified Purchase
john d collado
Boise, US
★★★★★ 5
great quality great price fast delivery
great quality great price fast delivery
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
E
Verified Purchase
Endocrantz
Port Orchard, US
★★★★★ 4
Nice piece but not for BMW motorcycles
Solid filter wrench. My bad for not checking the fit. Way too big for BMW filter 11 00 1 341 616 on my motorcycle. Turns out I had one that fits anyway. How dumb was that? I didn't get to try it on anything but four stars for appearing to be a good solid tool.
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Reviewed in the United States on August 7, 2024
C
Verified Purchase
Coldax
Lake Worth, US
★★★★★ 5
2021 Volvo XC 40 T5R
Works perfectly. Be sure to tighten down with the proper torque!
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Reviewed in the United States on February 14, 2025
H
Verified Purchase
HEIDI
New York, US
★★★★★ 5
Fits Volvo xc90
Fits my Volvo xc90 2020
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Reviewed in the United States on June 24, 2025
D
Verified Purchase
Destiny Voisine
Grantham, US
★★★★★ 5
It fit
BMW X1 2015. No problems at all. You won’t need any other cup unless you have more style euros.
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Reviewed in the United States on November 14, 2025

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