2020 - 2022 LM2 3.0L Duramax 1500 | HP Tuners

Introducing custom tuning for your 2020-2022 LM2 Duramax! 

TWD tuning for the 2020–2022 LM2 3.0L Duramax is developed to deliver a more responsive, refined driving experience for your truck. Using the HP Tuners platform and designed specifically for your set up, our calibrations optimize engine performance for stronger throttle response, improved power delivery, and better overall efficiency.

Each calibration is built around the unique characteristics of the LM2 platform, providing dependable performance and smooth everyday drivability while allowing you to get more from your 3.0L Duramax.

ECM Unlock Information

You’ll send your ECM to us to unlock, we’ll provide you instructions on how to get this to us.

The Benefits of Tuning

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

Tuning Info

Power Levels

• +15HP +45 FT/LBS TQ
• +30HP +70 FT/LBS TQ
• +60HP +110 FT/LBS TQ

Requirements

IMPORTANT:

• All vehicles and transmissions require a Windows based computer for the flashing of your vehicle or transmission with your tuning option.
• Vehicle tuning requires an unlocked ECM for flashing of tuning.
• All Dash messages must be gone before tuning.
• You can do this after unlock
• Use a hand held tool such as snap on or similar to reset dpf, scr functions

Use our tuner code to connect via the TDN App: GSRN-9443

Download instructions for the TDN App can be found here. 

How Does This Work?

1. Order your device, tuning package, and required parts.

2. Complete the Tune Order Form with your truck specifications and modifications.

3. We ship your device within 48 business hours.

4. Connect your 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. Follow the provided instructions to flash your truck and complete installation.

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

For a 2020-2022 LM2 3.0L Duramax full kit, you’ll need:

• ECM unlock
• Device – MPVI 3 or 4, or RTD
• 6 HPT Credits for ECM
• Tune file
• EGR Solution
• DPF Solution
• Can Bus Plugs

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, after we have received all required vehicle information, submitted tune order form, and stock readout files.

Devices typically ship within 48 business hours.

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

Instructions are provided based on your specific package.

Software Downloads & Instructions

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.

Financing

Financing Page

See Our Customers

Tuned by TWD Customer Page

Questions?

FAQs

Email Us: Support@TorqueWorksDiesel.com