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.
Note: Fits all wheelbase and cab configurations unless otherwise specified. This kit will NOT fit Cab & Chassis models. Aftermarket custom tuning is required for proper operation. Designed for competition/race use only.
- 4" High-Flow CAT & DPF Delete Design
- T409 Stainless Steel Construction
- Includes Muffler for a Refined Exhaust Note
- Reduces EGTs and Increases Exhaust Velocity
- No Sensor Bungs Required
- Pre-Weld Contour Bent Hangers for Secure Fitment
- Direct Bolt-On Installation
- 4" T409 Stainless Steel Delete Pipe Kit
- High-Flow Muffler
- Heavy-Duty Torque Clamps (50 ft-lbs)
- Pre-Weld Contour Bent Hangers
Dodge Cummins
2013-2018 6.7L
Note: Fits all wheelbase and cab configurations unless otherwise specified. This kit will NOT fit Cab & Chassis models. Aftermarket custom tuning is required for proper operation. Designed for competition/race use only.
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By purchasing, you acknowledge and accept that variations may occur and release OCDiesel from any liability related to product appearance differences.
Order Processing Time:
Orders are typically processed within 24-48 hours after the order has been placed.
Custom or special order items may take longer to process, typically 3-5 business days depending on the product and customization required.
Shipping Methods:
Standard Shipping (3-7 business days - location dependent)
Express Shipping (1-2 business days- location dependent)
Packaging:
All parts are securely packaged to better prevent any damage during transit. Fragile or high-value parts will be packaged with additional protective materials, such as bubble wrap or foam padding.
Shipping Rates:
Shipping rates vary based on the size, weight, and destination of the package. You can view the estimated shipping costs for your order during the checkout process before placing your order.
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Once your order has been shipped, you will receive an email with the tracking number and carrier information. You can also track your order status by logging into your OCDiesel account.
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We ship to the USA! (Except California) Please note that USA shipping rates and delivery times may vary based on destination. Customers are responsible for any customs fees, import taxes, or additional charges that may apply.
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We strive to keep our inventory updated regularly, but availability can change quickly. For the most accurate information, contact the OCDiesel customer service team using either this link, or the chat bubble on the bottom right of this page.
Most items are eligible for return within 30 days of shipping, provided they are unused, in original manufacturer packaging, and in resalable condition. All returns & cancellations are subject to restocking and cancellation fees.
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