2003 - 2007.5 Ram Cummins 5.9L 2500 3500 | HP Tuners

Get more from your 2003-2007.5 RAM 5.9L Cummins with custom HP Tuners calibration designed to improve horsepower, torque, drivability, and overall performance. 

Available for RAM 2500 and 3500 applications, tuning can be configured with a single power level ranging from optimized stock through 180HP to match towing, daily driving, or higher-performance needs. 

Tuning is deployed through a compatible HP Tuners MPVI device with the appropriate licensing, providing a straightforward platform for flashing your custom calibration.

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Fits

• 2003-2007.5 Ram Cummins 2500 – 5.9L
• 2003 / 2004 / 2005 / 2006 / 2007.5

Compatible Transmissions:

• Auto 68RFE
• Manual G56

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The Benefits of Tuning

• Increased horsepower
• Increased torque
• Potential improvement in fuel economy
• Improved towing performance
• Customized drivability

Single HP Tune

• Select one preferred horsepower level when ordering.

Available Single Tune Power Levels

• Stock – Optimized
• +30HP – Heavy Tow
• +80HP – Light Tow, 12,000 lbs. and under
• +150HP
• +180HP

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Requirements

IMPORTANT:

• Requires an HP Tuners MPVI Device + appropriate licensing, unless you already own a compatible HP Tuners MPVI device with the required licensing.
• Appropriate licensing is required for vehicle and transmission tuning.
• Currently, the only aftermarket tuning modification accepted for this platform is an aftermarket turbo.
• Detailed flashing instructions are included with every tune.

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How Does This Work?

1. Order your device, tuning package, licensing, and required parts.
2. Complete the Tune Order Form with your vehicle information and modifications.
3. Connect your HP Tuners device and send us the required stock readout.
4. Our calibrators write your custom tune files, typically within 24–48 business hours after receiving all required information.
5. Transfer the tune to your HP Tuners device and flash the truck using the provided instructions.

Devices typically ship within 48 business hours after all required vehicle and order information has been received.

Technical support is included if assistance is needed during installation or flashing.

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What You'll Need

For a 2003-2007.5 Ram Cummins 5.9L HP Tuners full kit, you’ll need:

• Device + License
• Tune Package
• EGR Solution
• DPF / Exhaust Solution

The device is used to flash your custom tune file into the truck, while the required hardware addresses the applicable factory systems.

After purchase, tunes are typically completed within 24-48 business hours from the time you have purchased, submit stock read out [if needed], and submit the tune order form.

Devices typically ship within 48 business hours, after we have received all required vehicle information, submitted tune order form, and stock readout files.

Instructions are provided based on your specific package.

Software Downloads & Instructions

Please ensure you understand and comply with all applicable laws and regulations in your local jurisdiction before purchasing or installing this product.

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Why Use Torque Works Diesel?

✅ In-house custom calibrations tailored to your truck and intended use
✅ Data-log support and revisions for drivability, reliability, and performance
✅ Financing available to make upgrades more manageable
✅ After-purchase support
✅ Detailed installation and flashing instructions
✅ Technical support included

At Torque Works Diesel, our tunes are custom written in-house.

You’re not receiving a generic third-party calibration used on every truck.

Built, tested, and refined in-house.

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Financing

Financing options are available to make your upgrades easier.

Click Here for our Financing Page

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See Our Customers

Check out trucks tuned by Torque Works Diesel:

Tuned by TWD Customer Page

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Questions?

FAQs

Email Us: Support@TorqueWorksDiesel.com