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2017-2019 Duramax 4" Downpipe Back Exhaust w/ Muffler (431021 / 432021)
Description
Fits
| Year | Make | Engine |
| 2017-2019 | GM |
L5P 6.6L Duramax |
Note: & 4 Bolt Flange
Mel's Manufacturing Exhausts are designed to fit all wheelbase & cab configurations unless otherwise specified.
The 431021 / 432021 is a 4" Downpipe Back Exhaust System by Mel's Manufacturing for the 2017-2019 L5P Duramax. It's the perfect kit if you're looking to remove your stock components and replace it 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!
Part Number: 431021 / 432021
Features
- 4" Down Pipe Back Exhaust
- OEM Style 4-Bolt Flange
- Includes High Flow Muffler
- 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!
Select Material
From $567.55
2017-2019 Duramax 4" Downpipe Back Exhaust w/ Muffler (431021 / 432021)—
$567.55
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Description
Fits
| Year | Make | Engine |
| 2017-2019 | GM |
L5P 6.6L Duramax |
Note: & 4 Bolt Flange
Mel's Manufacturing Exhausts are designed to fit all wheelbase & cab configurations unless otherwise specified.
The 431021 / 432021 is a 4" Downpipe Back Exhaust System by Mel's Manufacturing for the 2017-2019 L5P Duramax. It's the perfect kit if you're looking to remove your stock components and replace it 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!
Part Number: 431021 / 432021
Features
- 4" Down Pipe Back Exhaust
- OEM Style 4-Bolt Flange
- Includes High Flow Muffler
- 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!
