2017-2019 Duramax 5" SS Downpipe Back Exhaust System - No Muffler (DDC-5GM17)

Note: Fits all wheelbase and cab configurations unless otherwise noted. These kits will only fit models equipped with the OEM-style 4-bolt flange off the turbo direct pipe!

The DDC-5GM17 Downpipe-back exhaust system is designed for 2017-2019 L5P 6.6L Duramax trucks, delivering full high-performance 5" piping to replace all stock components. This complete kit includes clamps, pre-welded contour hangers, and reinforced flanges for a smooth, hassle-free install. Expect improved torque, enhanced flow, lower EGTs, better fuel mileage, and a deeper, aggressive exhaust tone for your 6.6L Duramax.

Why Shop Dirty Exhausts?
When you buy from Dirty Diesel, you’re buying peace of mind. We’ve put in the work to bring you exhaust systems that meet our strict standards for durability and flow. Every kit is vetted for a precision, bolt-on fit, ensuring you get a high-performance system that sounds as good as it performs, without the headache of poor fitment or subpar materials.

Part Number: DDC-5GM17