4-Inch Downpipe-Back Exhaust System (No Muffler) for 2020–2025 Duramax

Description

Description

Fits

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!

Part Number: 431028 / 432028

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!

Explore more from our collection.