2021 - 2023 LM2 3.0L Duramax Tahoe Yukon Escalade Suburban | HP Tuners

Unlock more from your 2021–2023 3.0L LM2 Duramax with custom tuning from Torque Works Diesel. Developed for the Chevrolet Tahoe and Suburban, GMC Yukon, and Cadillac Escalade, our LM2 calibrations are built to improve the way your Duramax performs where it matters; delivering increased horsepower and torque, improved throttle response, stronger towing performance, and refined everyday drivability.

At Torque Works Diesel, we don't believe in a one-size-fits-all approach. With multiple power levels available, you can choose the setup that best matches how you use your vehicle, whether that's daily driving, towing, or simply getting more performance out of the factory LM2 platform.

Fits

• Chevrolet Suburban 3.0L Duramax LM2
  • 2021 / 2022 / 2023
• Chevrolet Tahoe 3.0L Duramax LM2
  • 2021 / 2022 / 2023
• GMC Yukon 3.0L Duramax LM2
  • 2021 / 2022 / 2023
• Cadillac Escalade 3.0L Duramax LM2
  • 2021 / 2022 / 2023

ECM / TCM Unlock Information

• ECM Will need to be sent to HP Tuners for unlock
• Once you receive the ECM back from HP Tuners, install in vehicle and complete a readout.

The Benefits of Tuning

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

Tuning Information

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.

What You'll Need

For the LM2 kit, you'll need: 

• ECM unlock
• HP Tuners MPVI 3 or 4
• 6 HPT Credits
• Tune file
• CAN Bus Plugs
• EGR Solution
• DPF 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.

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 options are available to make your upgrades easier.

Financing Page

See Our Customers

Check out trucks tuned by Torque Works Diesel:

Tuned By TWD Customer Page

Questions?

FAQs

Or email us: support@torqueworksdiesel.com