2017-2023 Duramax L5P Dirty 4" Cat & DPF Delete Pipe No Muffler (DDC-3GM17)

The DDC-3GM17 by Dirty Diesel Customs is a CAT & DPF Delete Kit designed for 2017-2023 L5P 6.6L Duramax trucks. This high-performance 4" piping kit replaces stock components for improved fuel mileage, increased torque, and an aggressive, commanding exhaust note. Built for reliability and perfect fitment, it’s the ultimate upgrade for diesel performance enthusiasts.

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.