- Ready to ship from the USA | Free shipping on DPF delete kits!
:
:
:
Need help? Call us: 877 899-7875 or info@dieselbro.com
2020-2026 GM / Chevy Duramax 6.6L L5P
Add to Wishlist
Add to Wishlist
Add to Wishlist
Add to Wishlist
Add to Wishlist
Add to Wishlist
EGR Delete | GM Duramax Diesel L5P 2020-2025
In Stock
Add to Wishlist
Add to Wishlist
Add to Wishlist
Add to Wishlist
4″ Exhaust DPF Delete | GM Duramax Diesel L5P 2020-2025
Rated 4.20 out of 5
5 reviews
In Stock
Add to Wishlist
Add to Wishlist
Add to Wishlist
Add to Wishlist
Add to Wishlist
Add to Wishlist
Add to Wishlist
Add to Wishlist
L5P 3.5″ Down-pipe 2020-2025 GM Duramax
In Stock
Add to Wishlist
Add to Wishlist
Add to Wishlist
Add to Wishlist
Add to Wishlist
Add to Wishlist
Add to Wishlist
Add to Wishlist
Add a review
Rating*
0/5
* Rating is required
Your review
* Review is required
Name
* Name is required
Email
* Email is required
* Please confirm that you are not a robot
4.4
Based on 21 reviews
| 5 star | 43 | 43% |
| 4 star | 57 | 57% |
| 3 star | 0% | |
| 2 star | 0% | |
| 1 star | 0% |
1-5 of 21 reviews
Sorry, no reviews match your current selections
Disclaimer: Products sold by DieselBro.com are for off-road and
competition use only. It is not legal to use on public roads or
emissions-regulated vehicles. Learn more: Legal Disclaimer
competition use only. It is not legal to use on public roads or
emissions-regulated vehicles. Learn more: Legal Disclaimer













The team went above and beyond to make sure I received my order. Easily one of the best customer service experiences I’ve had in years.
Completely satisfied.
The muffler is compact, flows well, has a deep tone, and produces no drone at highway speeds.
Muffler eliminated cab drone while keeping a strong exhaust note. Good balance for daily driving.
The Optimal Flow 5-inch muffler arrived quickly and looks well made. It seems like a good balance to keep noise reasonable when towing. Planning to pick up the remaining components soon.