2004.5-2007 Cummins 4" Aluminized Turbo Back Exhaust System - No Muffler (DDC-4D05)

Name: 2004.5-2007 Cummins 4" Aluminized Turbo Back Exhaust System - No Muffler (DDC-4D05)
Brand: Dirty Diesel Customs
SKU: DDC-4D05
Price: 650.00 CAD
Availability: InStock

(5)

Dirty Diesel Customs Part Number: DDC-4D05

$650.00 CAD

Notices

These cannot be shipped to the USA. Learn More

Purchase to earn 650 Dirty Dollars Learn More

Fuel Your Build with These Extras

Universal 4 to 5" Dirty Stainless Exhaust Tip (DDC-EXH-A054)

Part No. DDC-EXH-A054

$102.44

Universal 4 to 6" Dirty Stainless Exhaust Tip (DDC-EXH-A055)

Part No. DDC-EXH-A055

$127.94

Truck Fitment

Warranty

Description

Note: Fits all wheelbases and cab configurations unless otherwise specified. This is a straight-pipe system with no muffler and is designed for race applications. Designed for competition/race use only.

The DDC-4D05 is a 4" Turbo-Back Exhaust system for the 2004.5-2007 Cummins 5.9L. It replaces your restrictive OE exhaust system with a 4" mandrel-bent straight pipe exhaust system. Just like all of our kits, it will come with the required clamps, pre-weld contour bent hangers, and stronger flanges to help you sail through the installation process. This exhaust not only sounds great but will improve your torque, fuel mileage, and throttle response while lowering EGTs!

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 and components that meet our strict standards for durability and flow. Every item is vetted for quality and long-term performance, ensuring you get professional-grade hardware without the headache of poor fitment or subpar materials.

Part Number: DDC-4D05

Features

4" Turboback Single Exhaust System
Durable Aluminized Steel Piping
Straight Pipe Design (No Muffler)
Single Side Exit
Mandrel-Bent Tubing for Improved Torque and Fuel Mileage
Easy Install - Mounts to OE Hangers

Warranty

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.

Questions and Answers

Don't see your question? Ask us anything about this product.

How do the pre weld hangers fit onto the exhaust for instal?

The pre-welded hangers are engineered to slide directly into your truck's OEM rubber isolation mounts.
Hey I got a 2005 dodge Cummins 3500 but it's a long box and I was wondering if it would still work since it's a long box?

Dirty Exhausts are designed to fit all wheelbase & cab configurations unless otherwise specified.