4"/5" Turbo-Back Exhaust 5.9L Cummins 2004.5-2007 Race Pipe Dodge Ram 2500/3500

4"/5" 2004.5-2007 5.9L Cummins Turbo-Back Exhaust Dodge Ram 2500/3500

This exhaust is designed for 2004.5–2007 Dodge Ram 2500/3500 with the 5.9L diesel engine. Available in 4-inch or 5-inch turbo-back configurations, this stainless steel pipe delivers a deeper exhaust tone, reduced EGTs, and better turbo whistle.

Fitment

2004.5 Dodge Ram 2500/3500 5.9L Cummins Diesel

2005 Dodge Ram 2500/3500 5.9L Cummins Diesel

2006 Dodge Ram 2500/3500 5.9L Cummins Diesel

2007 Dodge Ram 2500/3500 5.9L Cummins Diesel

Notes:

• 2004.5+ models have a 4'' turbo elbow outlet, making 4'' or 5'' systems direct-fit.
• 2003–early 2004 models require an adapter (3.5'' downpipe). Check 2003 5.9 Cummins exhaust.
• 5'' systems are recommended for heavy-duty use or enhanced sound.

Specification

Key Features

• Expect to see a significant increase in fuel mileage from about 13-14 mpg to a combined mileage of 18-19 mpg.
  
• Less exhaust backpressure, hence increases exhaust flow and performance of your motor.
• When paired with an ECU remap tuner, this pipe will increase power and torque for your truck. Check Mini Maxx V1 Tuner+Turbo-Back exhaust kit.

Installation

Check 4''/5'' turbo-back exhaust 5.9 Cummins 2004.5-2007 installation guide.
*Tuner Required: Removal of CAT, SCR, and/or DOC involves removing and eliminating emission related sensors, hence a delete tuner is needed. Check Mini Maxx V1 tuner+turbo-back exhaust all-in-one kit.

User Experience & Performance Feedback

4” Turbo-Back: Balanced sound, moderate volume increase over stock, excellent for daily drivers and lightly modified builds.

5” Turbo-Back: Deeper tone, better turbo whistle, lower EGTs, ideal for towing, heavy-duty use, or enthusiasts who want a louder, more aggressive sound.

FAQ

Q: What is the difference between a 4 inch and a 5 inch turbo back exhaust?
A: A 4" system offers a slightly tighter sound and better backpressure retention for lightly modified trucks. A 5" turbo back exhaust provides a deeper tone and better flow, especially for trucks with performance upgrades. Both are suitable for the 2004.5-2007 Dodge Ram 2500/3500 with 5.9L diesel, but the choice depends on your sound preference and power goals.

Q: Will a 5-inch turbo back exhaust fit my 2004.5 Dodge Ram 2500 with the 5.9 diesel?
A: Yes, the 5" turbo back exhaust system is designed to fit 2004.5–2007 Dodge Ram 2500/3500 5.9L diesel trucks. However, proper turbo elbow and downpipe compatibility should be confirmed, especially for early 2004.5 models.

Q: Does a 5-inch turbo back exhaust increase horsepower on a stock Dodge Ram 5.9L Diesel?
A: On a stock Dodge Ram 5.9L Diesel, gains are modest—typically 5–10 hp from reduced backpressure. When paired with a tuner or intake upgrades, a 5" system can support higher airflow demands and larger performance gains. Check Mini Maxx V1 tuner+turbo-back exhaust all-in-one kit.

Q: How loud is a 5-inch straight pipe exhaust compared to a 4 inch system on a Dodge Ram 5.9L Diesel?
A: 5” system delivers a deeper, more aggressive tone but is generally quieter inside the cab than a 4” system, which can sound raspier and louder, especially under acceleration or towing loads.

Q: Can I install a 5-inch turbo back exhaust on my Dodge Ram 5.9L Diesel without a lift?
A: Yes, installation can be done on the ground with basic hand tools, but using a lift or ramps makes the process faster and easier. Trucks with short beds or extended cabs may require trimming of the exhaust sections.

Q: Is a DPF delete legal on my 2006 Dodge Ram with a Dodge Ram 5.9L Diesel?
A: The 2006 Dodge Ram 5.9L Diesel trucks were not equipped with a DPF from the factory. However, removing or modifying emissions components is not legal for on-road use in the U.S. Always check your local and state emissions laws before installation.

Q: Will I need tuning for a 5-inch turbo back exhaust on a Dodge Ram 5.9L Diesel?
A: While tuning is not mandatory for the Dodge Ram 5.9L Diesel when upgrading to a turbo-back system, pairing it with a tuner can improve throttle response, fuel economy, and turbo spool time. It's highly recommended for optimal results. Check Mini Maxx V1 tuner+turbo-back exhaust all-in-one kit.

Q: Will a 5-inch turbo back exhaust affect towing with a Dodge Ram 5.9L Diesel?
A: Yes, positively. The improved flow helps maintain lower EGTs while towing, reducing engine stress. However, a resonator or muffler is recommended to keep noise levels comfortable during long hauls.

Q: Does this system support EGT probe installation for monitoring on 2006 Dodge Ram 5.9L Diesel?
A: Yes, DPFExhaust 4"/5" turbo back exhaust kits for Dodge Ram 5.9L Cummins Diesel come with pre-drilled ports or tapped bungs for EGT sensors. Always confirm your kit includes this if you're monitoring EGTs for towing or tuning.

Fast Shipping Policy

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Easy Return Policy

Every order comes with a 14-day free return, which means you don't have to pay for a return slip. Click for Return Policy.