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

The 431020 & 432020 by Mel's Manufacturing 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 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. 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