SKU: 52512523351

AFE Large Bore-HD 4" 409 Stainless Steel DPF-Back Exhaust System 20-25 GM 6.6L Duramax

Sale price$327.24 Regular price$363.60
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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

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Description

AFE Large Bore-HD 4" 409 Stainless Steel DPF-Back Exhaust System 20-25 GM 6.6L DuramaxDont hide the power of your engine behind a basic exhaust, upgrade to an exhaust that results in increased horsepower, improved throttle response, hassle free installation, and durable construction. What exhaust is this? Well, its aFes Large Bore HD 4 409 Stainless Steel DPF Back Exhaust, specially made for your Duramax. What are the benefits? Reliability and durability, which will save you time and money in the long run by avoiding replacing your

Don’t hide the power of your engine behind a basic exhaust, upgrade to an exhaust that results in increased horsepower, improved throttle response, hassle free installation, and durable construction. What exhaust is this? Well, its aFe’s Large Bore-HD 4” 409 Stainless Steel DPF-Back Exhaust, specially made for your Duramax. What are the benefits? Reliability and durability, which will save you time and money in the long run by avoiding replacing your exhaust system. Not only that, but you can fly down the road in your truck with increased horsepower! What else is there to offer?

4" 409 Stainless Steel Construction:

This DPF-back exhaust system is constructed of 4" mandrel-bent 409 stainless steel tubing for maximum strength and durability.

Dual 5" Diameter Polished or Black Intercooled Exhaust Tips:

Finishing off this exhaust system are dual 5" diameter polished or black 304 stainless steel intercooled clamp-on exhaust tips. The tips features an aFe POWER logo plate riveted on for a unique style.

Installation:

Some cutting will be required, see instruction sheet for further information. Utilizing factory style hangers this system mounts directly to factory mounting locations for a hassle-free installation.

Integrated Mitered Merge Collector:

A mitered merge collector is used to decrease turbulence and increase exhaust velocity resulting in increased horsepower, torque and improved throttle response.

Computer-Aided Design:

Utilizing state-of-the-art computer-aided design technology, this exhaust system is designed for custom, high tolerance factory fitment.

MIG-Welded:

100% MIG-Welded for race-proven strength and durability.

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: 52512523351

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mocean
Lexington, US
★★★★★ 5
Thick, soft, perfect for my service dog to lay on in restaurants, etc.
Color: Blue, Style: 1/2 Inch
I bought this for my service dog to lay on in restaurants, etc. It's super thick and soft. I cut it in half and I'm using the other half for my dog to lay on in the car. Excellent quality and I love the carry strap.
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Reviewed in the United States on June 7, 2026
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Rome
Battle Creek, US
★★★★★ 4
Comfortable and thick mat that’s great for workouts at home
Color: Black, Style: 1/2 Inch, Color: Black, Style: 1/2 Inch
I picked up this Amazon Basics extra thick exercise mat for home workouts, and it’s been a solid addition. The thickness is the first thing you notice—it provides good cushioning, especially for exercises where you’re on your knees, elbows, or back. The surface has enough grip to keep you from slipping during most movements, whether you're doing stretching, core work, or basic workouts. It also stays in place pretty well on the floor without sliding around too much. The mat rolls out flat easily and comes with a strap, which makes it convenient to store or carry if needed. It’s lightweight enough to move around but still feels durable. It’s not a high-end studio mat, but for everyday workouts at home, it does exactly what you need it to do. Pros: • Extra thickness provides good cushioning • Comfortable for floor exercises • Lightweight and easy to store • Good value for the price Cons: • Slight compression over time with heavy use • Grip is good but not premium-level Overall, this is a great budget-friendly mat for home workouts, stretching, or basic fitness routines.
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Reviewed in the United States on March 17, 2026
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Karla Lara
Houston, US
★★★★★ 5
Maximum joint comfort and durability
Color: Pink, Style: 1/2 Inch
I absolutely loved the color, and it offers incredible cushioning without sacrificing stability during balance poses. It is dense, doesn't lose its shape, and springs back instantly. The materials are high-quality, and it doesn't have that strong plastic smell that others often have. It is worth every penny for the comfort it provides.
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Reviewed in the United States on April 26, 2026
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Jo
Boise, US
★★★★★ 5
PLUSH! Fabulous yoga mat!
Color: Black, Style: 1/2 Inch
SO comfortable! It feels like a soft memory foam padding. I use it for several exercise classes and it is great for all of my needs! I love the strap it comes with to keep it rolled up in between classes and the ability to carry it anywhere.
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Reviewed in the United States on May 3, 2026
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Sandra
Port Orchard, US
★★★★★ 5
very comfortable and thicker than a regular yoga mat
Color: Pink, Style: 1/2 Inch
This yoga mat is very comfortable and thicker than a regular yoga mat. The quality is excellent, and it doesn't have that strong rubber smell that many mats have. I'm very happy with it!
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Reviewed in the United States on June 2, 2026

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