2017-2019 Duramax 4" SS Downpipe Back Exhaust System - w/ Muffler (DDC-4GM17M)

Note: DDC Exhausts are designed to fit all wheelbase & cab configurations unless otherwise specified. These kits will only fit models equipped with the OEM-style 4-bolt flange off the turbo direct pipe!

The DDC-4GM17M is a 4" Downpipe Back Exhaust System by DDC for the 2017-2019 L5P Duramax. It's the perfect kit if you're looking to remove your stock components and replace them with high-performance & high-flow 4" piping from your downpipe back! Just like all of DDC's Exhaust kits, it will come with all the required clamps, pre-welded, contour-bent hangers, and stronger flanges to help you cruise through the installation process. You'll notice improved fuel mileage, increased torque, and a much better-sounding 6.6L!

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-4GM17M