2004.5-2007 Cummins 4" Turbo Back Exhaust System w/ Muffler (DDC-4D05M)

Fits

Year	Make	Engine
2004.5-2007	Dodge/Ram	Cummins 5.9L

Give your 5.9L Cummins the breathing room it deserves. The DDC-4D05M replaces your restrictive factory exhaust with a high-flow, 4" mandrel-bent system designed specifically for the 2004.5-2007 Ram. This kit includes a high-flow performance muffler, providing that iconic Cummins grunt while keeping EGTs in check and performance at its peak.

At Dirty Diesel, we prioritize fitment. This system comes complete with contour-bent hangers and reinforced flanges to ensure a "one-and-done" installation. Whether you’re towing or cruising, you’ll notice improved throttle sensitivity and better mileage across the board.

Note: This kit is designed for turbos featuring the larger turbo collar. If you have a smaller turbo collar (typically found on early 2003-2004 models), click here.

Part Number: DDC-4D05M

• 4" Turbo-Back Mandrel-Bent Tubing
• High-Flow Performance Muffler
• Stainless Steel 
• Single Side Exit - Clean OE Appearance
• Bolt-On Installation using Factory Hanger Points

We overengineer everything we make. It's manufactured to last and tested to prove it, and if by some strange anomaly it ever lets you down, we'll fix it, have a word with whoever built it, and come back stronger. That's the Dirty Lifetime Warranty. Click here for all the details.