aFe Large Bore-HD 5 IN 409 Stainless Steel DPF-Back Exhaust System w/Black Tip (49-42078-B)
SKU: 50108313705

aFe Large Bore-HD 5 IN 409 Stainless Steel DPF-Back Exhaust System w/Black Tip (49-42078-B)

Sale price$253.51 Regular price$281.68
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Description

aFe Large Bore-HD 5 IN 409 Stainless Steel DPF-Back Exhaust System w/Black Tip (49-42078-B)Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Large Bore HD Turbo 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. Features: Greater exhaust flow than stock system Increases horsepower and torque Improves performance Lowers exhaust gas temperature Flow

Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Large Bore HD Turbo 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.

Features:

  • Greater exhaust flow than stock system
  • Increases horsepower and torque
  • Improves performance
  • Lowers exhaust gas temperature
  • Flow bench and dyno tested
  • Tubes mandrel-bent from 409 stainless steel
  • Welded hangers with swaged ends
  • Slotted and swedged ends
  • Premium quality band clamps
  • Backed by a 2-year limited warranty
  • Proudly made in the USA

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. An 8" diameter by 30" length, straight, flow-through, perforated muffler is included in the system. A straight muffler delete pipe is also included if a more aggressive sound and maximum flow is desired. This system will increase exhaust flow by up to 29% and lower EGT (Exhaust Gas Temperature) by up to 100º, 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 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.

DETAILS:

  • Constructed from 5" Mandrel-Bent 409 Stainless Steel Tubing
  • 7" Diameter Black Stainless Steel Clamp-On Exhaust Tip
  • Utilizes Factory Style Hangers for a Secure Fit
  • 100% MIG-Welded for Strength and Durability
  • All Necessary Hardware is Included for a Hassle-Free Installation
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: 50108313705

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This Is My Review Name
Lowell, US
★★★★★ 5
Perfect fit and great quality for the price
This suit was perfect for my son. The fit was exactly as expected. The quality is excellent for the price—it feels well made and durable enough to last through multiple wears. It doesn’t feel cheap or flimsy at all. It also looks really good on him. Clean, polished, and great for formal events like weddings or parties. Overall, a fantastic value with great quality and a great fit.
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Reviewed in the United States on May 9, 2026
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Verified Purchase
Nicole S.
Pawtucket, US
★★★★★ 3
Missing items
Color: Sky Blue, Size: 16
Was missing the tie that is supposed to come with it and it looked like it was tried on and thrown back in the bag. The sleeve to the jacket were rolled up.
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Reviewed in the United States on December 7, 2025
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Alley Cat on a Homestead
Port Orchard, US
★★★★★ 5
Excellent Quality, Great Value, Great Look. Highly Recommend
Very well-made, there are some minor imperfections in the cuff sewing that aren't really noticeable when on. Liner is quality, color is spot on, and it fits true to size. If you're in the market for a toddler blazer and pants, you can't go wrong with this one in terms of quality, price, and the cut is perfect for a very polished look. There were a few loose strings to be clipped, but everything was correctly sewn and well. None of them affected the seam strength. The pants have a button and elastic on the waistband to make adjusting the waist size easier.
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Reviewed in the United States on November 14, 2025
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Amazon Customer
San Leandro, US
★★★★★ 5
Great boys slim fit suit for weddings, church, or special events
Color: Medium Grey, Size: 12
Great kids suit. Comes with a jacket, pants, and tie. Does not have a shirt. Fits as expected. Classic cut on the lapels. Great quality materials. Well made pants and jacket. The color is consistent without any fade or dark spots that can happen with lower quality fabrics. Looks great on. My son loves it. Says it is not restrictive, he can move easily in it. Highly recommend for church, special events, weddings, etc.
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Reviewed in the United States on October 22, 2025
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Mommynificent
Carnegie, US
★★★★★ 5
Nice high-quality, light weight suit for a tween!
Color: Navy Blue, Size: 10
This is such an attractive suit for a tween boy! My son loves dressing up, and this is his new favorite suit. He really likes the double-breasted style and the light weight of the fabric so that it isn't too hot. The tie that came with it gives major Harry Potter vibes which we weren't expecting, but he has lots of other ties that he also enjoys pairing with it. The size seems right, and it fits him well. He says it is very comfortable. I'm happy with the quality and the navy color.
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Reviewed in the United States on October 14, 2025

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