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2020-2025 Duramax 4" Downpipe Back Exhaust w/ Muffler (431027 / 432027)

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2020-2025 Duramax 4" Downpipe Back Exhaust w/ Muffler (431027 / 432027)

Description

Fits

Year Make Model
2020-2025
 GMC 6.6L Duramax w/ 4-Bolt Flange

Mel's Manufacturing Exhausts are designed to fit all wheelbase & cab configurations unless otherwise specified.

The 431027 / 432027 is a 4" Downpipe Back Exhaust System by Mel's Manufacturing for the 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: 431027 / 432027

Features
  • 4" Down Pipe Back Exhaust
  • OEM Style 4-Bolt Flange
  • Includes High Flow Muffler
  • Increased Torque & Fuel Mileage
  • Aluminized or T409 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 $208.37

Original: $595.34

-65%
2020-2025 Duramax 4" Downpipe Back Exhaust w/ Muffler (431027 / 432027)—

$595.34

$208.37

Product Information

Shipping & Returns

Description

Description

Fits

Year Make Model
2020-2025
 GMC 6.6L Duramax w/ 4-Bolt Flange

Mel's Manufacturing Exhausts are designed to fit all wheelbase & cab configurations unless otherwise specified.

The 431027 / 432027 is a 4" Downpipe Back Exhaust System by Mel's Manufacturing for the 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: 431027 / 432027

Features
  • 4" Down Pipe Back Exhaust
  • OEM Style 4-Bolt Flange
  • Includes High Flow Muffler
  • Increased Torque & Fuel Mileage
  • Aluminized or T409 Stainless Steel
  • Easy Installation
Notes
  • These kits will only fit models equipped with the OEM style 4-bolt flange off the turbo direct pipe!

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