2022-2024 Cummins EZ-Lynk OBDII Tuning - Available Now

Have questions? We have answers. Dirty Help Center

Introducing our new site Dirty Garage - your source for half-ton parts, off-road, and more.

Welcome to our store. Learn more

Closed Sept 30 for the National Day for Truth and Reconciliation. Back open Thursday, Oct 1.

2015.5-2016 Duramax 4" CAT / DPF Delete (431020 / 432020)

Flo-Pro Mft Part Number: 872-431020
Regular price $550.00 CAD

Material
Notices

We are unable to ship this product to P.O. boxes. Learn more

These cannot be shipped to the USA. Learn More

Ships from

  • Canada
    3 available
  • United States These cannot be shipped to the USA
    Out of stock

Purchase to earn 550  Dirty Dollars Learn More

Description


Flo-Pro Exhausts are designed to fit all wheelbase & cab configurations unless otherwise specified.
The 431020 & 432020 by Flo-Pro is a 4" CAT & DPF Delete for the 2015.6-2016 LML. This kit allows you to drop out your OE CAT & DPF system and replace it with a high-flow delete kit. Just like all of Flo-Pro 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. This delete kit not only looks and sounds great, but will improve your mileage, throttle response, and torque in your LML.
Part Number: 431020 & 432020

Features

  • 4" Mandrel Bent Tubing
  • OEM Style 3-Bolt Flange
  • No Bungs
  • Aluminized or Stainless Steel
  • Increase Torque
  • Increased Fuel Efficiency
  • Easy Install - Mounts to OE Hangers

Stainless vs Aluminized

Aluminized steel is the budget-friendly choice. It has a protective coating that holds up well, but once that coating wears it will eventually rust through, especially in salted winter climates. The stainless option is T409 stainless, an automotive-grade steel built to resist rot, and it will typically outlast the truck. T409 is not polished show-grade stainless, so light surface rust or discoloration can still show up over time. That is cosmetic only and won't affect performance or service life.

Notes

  • This kit will only fit an LML with the OE style 3-bolt flange of the downpipe. If your LML has the V-Band connection at the downpipe you want to use the 2011-2015 Duramax Kits!

Questions and Answers

Don't see your question? Ask us anything about this product.

  • Truck is Def delete and tuned will i have to retune it or get a new tune ?

    If your tune is emissions off, installing this will not require a retune.

  • do i need a tune to use this?

    Yes.

  • Is this designed to work with the original muffler?

    No.

Vehicle Fitment - Part No: 431020


Product Fitment Notes
  • Requires the OEM-style 3-bolt flange at the downpipe.
Loading Fitments...