2013-2018 Cummins 6.7L Dirty 4" Cat & DPF Delete w/ Muffler (DDC-3D13M)

The DDC-3D13M is a 4" CAT & DPF delete kit designed for 2013-2018 6.7L Cummins pickups. This high-performance system replaces restrictive factory components with high-flow 4" stainless steel, delivering a significant boost in torque, improved fuel efficiency, and lower EGTs. Precision-engineered for a direct-fit, this kit gives your 6.7L a deeper, more aggressive exhaust note while maintaining long-term reliability.

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.