SKU: 36455316625

6.6L Duramax LML Downpipe Back Exhaust | GM 2015.5-2016

Sale price$272.25 Regular price$302.50
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Description

6.6L Duramax LML Downpipe Back Exhaust | GM 2015.5-2016This 4" or 5" Duramax LML DPF delete exhaust is designed for the 2015. 5 2016 GMC and Chevy Duramax 6. 6L 2500 3500 pickups. It is the perfect upgrade for those looking to improve performance while preparing their vehicle for off road competition use. Vehicle Fitment: Years: 2015 2016 Makes: Chevrolet Silverado, GMC Sierra Models: 2500, 3500HD Engine: 6. 6L Duramax (diesel) Body: Pickup Please Note: This kit is compatible with models equipped with an

This 4" or 5" Duramax LML DPF delete exhaust is designed for the 2015.5 - 2016 GMC and Chevy Duramax 6.6L 2500/3500 pickups. It is the perfect upgrade for those looking to improve performance while preparing their vehicle for off-road competition use.


Vehicle Fitment:

  • Years: 2015-2016
  • Makes: Chevrolet Silverado, GMC Sierra
  • Models: 2500, 3500HD
  • Engine: 6.6L Duramax (diesel)
  • Body: Pickup

Please Note:

  • This kit is compatible with models equipped with an OEM-style 3-bolt flange that comes off the turbo direct pipe.
  • It is not suitable for Cab & Chassis trucks and will not fit V-Band setups. Be sure to verify your truck's fitment before purchasing.

Key Features:

  • T409 stainless steel piping: Durable, corrosion-resistant materials ensure long-lasting performance.

  • Downpipe-Back exhaust system: This setup provides maximum exhaust flow, enhancing power and efficiency.

  • OEM-Style 3-Bolt Flange: Ensures a proper fit with the factory turbo flange for a straightforward installation.

  • OE-Style Hangers: Makes the installation process smooth and secure, fitting seamlessly into factory positions.

  • No Muffler - Straight Pipe Design: Designed for maximum exhaust flow, ideal for competition applications.

  • No Bungs:  Where emissions-related components are removed it simplifies the design for off-road performance.


This race exhaust system lets you remove the catalytic converter and DPF filter easily. This upgrade significantly improves exhaust flow and boosts engine performance during off-road use. With the straight pipe design, your truck achieves maximum airflow, minimizing restrictions. This setup is ideal for competitive racing. However, you need race tuning for proper functionality, and remember, this system is strictly for off-road use only.

For Duramax LML DPF delete exhaust : You can add a 4" muffler for a quieter ride if preferred.

To achieve optimal performance, you should install and tune the system professionally.

Always check your local laws before installing components designed for off-road use.

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: 36455316625

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Hmlb
Bozeman, US
★★★★★ 5
I recommend!
Shines the black trim very well! Doesn't look dull anymore!
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Reviewed in the United States on May 29, 2026
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Old Hoodlum
Lexington, US
★★★★★ 5
Quality products
Been using Meguiers since the 70's. Never disappointed.
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Reviewed in the United States on May 30, 2026
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Professor Merrie Killer
Massapequa, US
★★★★★ 5
This stuff DELIVERS 🖤
I was skeptical because…late night, total BS infomercials of yesteryear. Before the delivery guy was off my porch, I was trying this out. Check out the pics. This cupholder is from a 2010 vehicle— 16+ years of sun fading, easily wiped away. Super fast. (I did two coats on this cupholder and it was a bit better than the first coat). It doesn’t take much product or elbow grease. Rub it on and in, wait a few, give it another wipe and done. Like magic. No harsh smell (there is a smell, but it dissipates quickly). There’s a tiny bit of a slippery feel (not greasy) that also dissipates. Worth every penny.
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Reviewed in the United States on May 27, 2026
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Carlos Manuel Nieves Rivera
Fort Morgan, US
★★★★★ 5
Magnífico
Excelente producto
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Reviewed in the United States on May 26, 2026
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Oldknight
Waukegan, US
★★★★★ 4
Not bad but doesn't last a long time.
Works well but doesn't really last long. Proper application is very important also. Take your time if doing it yourself but it was recommended to me by a professional automobile repair store that I have a lot of faith in. Unfortunately. My wife. I'm sure most of you understand.
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Reviewed in the United States on May 5, 2026

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