Mel's Manufacturing
2020-2025 Duramax 4" Downpipe Back Exhaust - No Muffler (431028 / 432028)
Performance part for diesel trucks. Please confirm compatibility before purchasing.
Description
Description
Fits
| Year | Make | Model | Engine |
| 2020-2025 |
GM | 2500/3500 | L5P w/ 6.6L Duramax & 4-Bolt Flange |
Mel's Manufacturing Exhausts are designed to fit all wheelbase & cab configurations unless otherwise specified.
The 431028 / 432028 is a 4" Downpipe Back Exhaust System by Mel's Manufacturing for the 2020-2023 L5P Duramax. It's the perfect kit if you're looking to remove your stock components and replace them with high-performance & high-flow 4" piping from your downpipe back! Just like all of Mel's Manufacturings Exhaust kits, it will come with all the required clamps, pre-weld contour bent hangers, and stronger flanges to help you cruise through the installation process. You'll notice fuel mileage improvement, increased torque, and you'll have a much better sounding 6.6L!
Features
- 4" Downpipe-Back Exhaust System
- OEM Style 4-Bolt Flange
- No Muffler - Straight Pipe
- No Bungs
- Increased Torque & Fuel Mileage
- Aluminized or Stainless Steel
- Easy Installation
Notes
-
These kits will only fit models equipped with the OEM style 4-bolt flange off the turbo direct pipe!
Compatible trucks
Shipping info
Please refer to our Shipping policy. As a general rule, we ship out all orders in 24-72 hours using services like Purolator and other, and always provide you with a tracking number.
Disclaimer & warranty
Please refer to our Disclaimer and Warranty pages.
Planning a larger purchase? Feel free to reach out to discuss a possible discount.
If you have any questions or need help with your order, you’re always welcome to contact us directly.
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