2007 - 2021 Ram Cummins 2500 3500 4500 5500 | MM3

Get more from your 2007-2021 RAM Cummins with custom MM3 tuning designed to improve horsepower, torque, drivability, and overall performance. 

Available for RAM 2500 through 5500 pickups and cab chassis applications, tuning can be configured as a single power level or CSP5 switchable tuning with five selectable levels from 30HP through 200HP. Compatible 68RFE-equipped trucks can also be paired with transmission tuning to improve converter lockup, shift strategy, line pressure, and torque management, while the MM3 platform provides convenient tune management directly through the device.

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Fits

• RAM 2500 – 6.7L Cummins
• 2007 / 2008 / 2009 / 2010 / 2011 / 2012 / 2013 / 2014 / 2015 / 2016 / 2017 / 2018 / 2019 / 2020 / 2021
• Compatible with Pickups, Cab & Chassis, and Incomplete Trucks

Compatible Transmissions

• 68RFE Automatic – Commonly found in automatic RAM 2500 pickups
• Aisin Automatic – Commonly found in RAM 3500, 4500, and 5500 pickups, Cab & Chassis, and incomplete trucks
• G56 Manual

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ECM / TCM Unlock Information

ECM:

• Vehicle tuning is deployed through a compatible MM3 Device.
• The appropriate MM3 licensing is required before tuning can be flashed to the vehicle.

TCM:

• Custom transmission tuning is available only for vehicles equipped with the 68RFE transmission.
• Transmission tuning requires the appropriate MM3 licensing.
• Transmission tuning is not available for the Aisin transmission with this package.

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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

A Single HP Tune includes one selected power level. Choose your preferred horsepower level when placing your order.

Available Power Levels

• Optimized Stock
• 30HP – Heavy Tow
• 80HP – Light Tow, 12,000 lbs. and under
• 150HP
• 180HP
• 200HP

Aftermarket Modifications

For this platform, we are currently only accepting custom tuning modifications for an aftermarket turbo.

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Switchable Tuning

CSP5 Switchable Tuning allows you to select between five predetermined power levels without stopping to reflash the truck.

CSP5 Power Levels

• 30HP – Heavy Tow
• 80HP – Light Tow, 12,000 lbs. and under
• 150HP
• 180HP
• 200HP

How to Change Power Levels

CSP5 tuning allows you to switch between the five available power levels using:

• The touchscreen on the MM3 Device, or
• A physical Cummins CSP4/CSP5 OBD-II Pass-Through Switch

The physical pass-through switch plugs into the vehicle's OBD-II port and allows you to select the desired power level while the truck is running or driving.

This allows power levels to be changed without stopping the truck and reflashing the ECM.

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Transmission Tuning

Transmission tuning is available only for the 68RFE transmission.

Benefits of Transmission Tuning

• Earlier converter lockup
• Increased line pressure
• Revised shift strategy to reduce sluggish shifting
• Earlier downshifts with less throttle input
• Revised torque management

Custom transmission tuning can improve shift behavior, towing performance, and how the transmission responds to increased engine power.

How to Identify Your Transmission

• 68RFE: The transmission pan has a rounded, turtle-shell appearance. The transmission dipstick is located on the passenger side of the engine bay.
• Aisin: The transmission pan is relatively flat and typically has Aisin marked on the side. The transmission dipstick is located on the driver side of the engine bay.

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Requirements

IMPORTANT:

• All vehicle and transmission tuning requires an MM3 Device + appropriate licensing, unless you already own a compatible MM3 Device and have the required licensing.
• A Windows-based computer is required to load and flash tuning into the vehicle and/or transmission.
• Detailed instructions are included with every tune and walk you through transferring the tune file to your MM3 Device and flashing the vehicle.
• Custom 68RFE transmission tuning requires the appropriate additional licensing.
• For this platform, we are currently only accepting aftermarket tuning modifications for an aftermarket turbo.

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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 truck specifications and modifications.
3. We ship your device within 48 business hours after receiving all required vehicle information.
4. Connect your MM3 Device and send us the required stock readout. Instructions are provided.
5. Our calibrators write your custom tune files.
6. Your files are sent within 24–48 business hours after we receive all required information.
7. Transfer the provided tune file to your MM3 Device and flash the truck using the included instructions.

Our technicians are available for phone and technical support if assistance is needed during installation.

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What You'll Need

For a 2007–2021 RAM 6.7L Cummins full kit, you’ll need:

• Device: MM3 Device
• MM3 Licensing
• Tune Package
• EGR Solution
• DPF / Exhaust Solution

If you already own a compatible MM3 Device, the appropriate licensing is still required to deploy the tuning.

The MM3 Device is used to transfer and flash your custom tune files into the truck.

After purchase, tunes are typically completed within 24–48 business hours once we have received your Tune Order Form, required stock readout files, and all necessary vehicle information.

Devices typically ship within 48 business hours after we have received all required vehicle information, the completed Tune Order Form, and any required 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