2011-2019 Powerstroke 4" Downpipe Back Race Exhaust - No Muffler (421013 / 422013)

The 421013 / 422013 is a 4" downpipe back race exhaust system by Mel's Manufacturing for the 2011-2019 Ford 6.7L. It replaces your restrictive OE exhaust system from the downpipe back with a 4" mandrel-bent exhaust system. 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. The 853NB does not include a muffler and is intended for the track driven 6.7's! This kit not only sounds great but will improve the torque, mileage, and throttle response on your 6.7L!

Part Number: 421013 / 422013