2015.5-2016 Duramax 4" Downpipe Back Exhaust - No Muffler (431019)

The 431019 is a 4" Downpipe-Back Exhaust System by Mel's Manufacturing for the 2015.5-2016 6.6L 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 the 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, increased flow and lower EGT's, not to mention you'll have a much better sounding 6.6L!

Part Number: 431019NM