4" Downpipe Back Single With No Muffler | 2017-2019 GM 2500/3500 6.6L DURAMAX L5P-431022 Year Applicable:2017-2019 NOTE: You must have a

NOTE: You must have a Phatshaft or similar turbo to run this kit

CNC inner flange grooves promote a complete seal

Includes proprietary fuel line and all necessary hardware

28-5/8" over-all-length Price includes applicable core fee

It even offers the ability to monitor fuel system health

4" Downpipe Back Single With No Muffler | 2017-2019 GM 2500/3500 6.6L DURAMAX L5P-431022 Year Applicable:2017-2019 NOTE: You must have aConstructed out of 16 gauge aluminized steel or T409 Stainless, this exhaust system is designed to simplify installation with included clamps, preweld contour bends and improved flanges. Enjoy a noticeable boost in performance, lowered EGTs and amplified air flow with this Mel's system. For powerhouse performance, Mel's delivers horsepower you can hear! * IMPORTANT NOTE: These kits will only fit models equipped with the OEM style 4 bolt flange off the