4" Downpipe Back Single With No Muffler | Cab & Chassis-2017-2019 GM 2500/3500 6.6L DURAMAX L5P-431024 Air Bag Uses the stock factory power

Uses the stock factory power wire with no ground wire needed

Black braided nylon coolant bypass hose with AN fittings

Adjust Throttle Response on the fly with steering wheel controls

Heater for BD Intake Horns (p/n 1041560 / 1041561 / 1041566) when installed with Intake Open Grid (p/n 1041562 / 1041564)

these lights are perfect for service trucks

4" Downpipe Back Single With No Muffler | Cab & Chassis-2017-2019 GM 2500/3500 6.6L DURAMAX L5P-431024 Air Bag Uses the stock factory powerConstructed 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! Features: Ease of installation Contour Bent Hangers TorcTite Clamps OEM Style 4 Bolt Flange No