GM Duramax - OBD2 Emissions-On Tune Files (2001-2023)

File does not include hardware or tuning device. Image is for demonstration purposes only.

Custom OBD2 Tune File for GM Duramax (2001-2023)

Already have an OBD2 tuning device? Maximize your Duramax engine's performance with our custom tune file, tailored for your specific vehicle and engine configuration. Designed to enhance both power and efficiency, this tune keeps emissions systems intact while optimizing engine parameters for better towing, responsiveness, and fuel economy.

Why Choose This Custom Tune File?

Unlock advanced performance without deleting emissions systems. This tune file offers:

• Increased horsepower and torque for enhanced towing performance
• Optimized engine operations to reduce wear and lower combustion temperatures
• Improved throttle response and reduced DPF regeneration cycles

Year Selection:

To ensure seamless tuning, please select the correct year for your GM Duramax:

• 2001-2004 GM Duramax Silverado/Sierra (LB7)
• 2004.5-2005 GM Duramax Silverado/Sierra (LLY)
• 2006-2010 GM Duramax Silverado/Sierra (LBZ/LMM)
• 2011-2016 GM Duramax Silverado/Sierra (LML)
• 2017-2023 GM Duramax Silverado/Sierra (L5P)
  • Requires the ECM E41 Upgrade & Unlock Kit
• 2020-2022 Silverado/Sierra 1500 3.0 Duramax (LM2)
  • Requires the GM E46 ECM Upgrade Service
• 2022-2022.5 Silverado/Sierra 1500 3.0 Duramax (LM2)
  • Requires the L5P E66 ECM Service to enable diagnostic and tuning
• 2019-2023 Silverado/Sierra 6.6 Duramax (L5D)
  • Requires the ECM E41 Upgrade & Unlock Kit

Year Specific Key Considerations:

The 2017-2023 GM Duramax Silverado/Sierra (L5P) and 2019-2023 Silverado/Sierra 6.6 Duramax (L5D) prices on TunerDepot.com do come with the ECM E41 Upgrade & Unlock Kit.

The 2020-2022 Silverado/Sierra 1500 3.0 Duramax (LM2) price on TunerDepot.com does come with the GM E46 ECM Upgrade Service.

The 2022-2022.5 Silverado/Sierra 1500 3.0 Duramax (LM2) price on TunerDepot.com does not come with the required L5P E66 ECM Service.

The 2022-2022.5 Silverado/Sierra 1500 3.0 Duramax (LM2) requires you to physically send in your ECM using this service here. The price of this product on TunerDepot.com does not cover this required service.

How It Works:

1. Purchase the emissions-on tune: Select the tune associated with your vehicle's specifications.
2. Read your vehicle: Use the OBD2 device you already have to read your vehicle’s control module and generate an info log.
3. Send us the log & read file: The info log and read file are sent to our tuning specialist, who creates your custom tune file. Connect to our tuning specialist using this contact form here.
4. Receive your tune file: Our in-house expert tuner sends you the completed tune file for your vehicle.
5. Write the tune to your vehicle: Upload the tune file to your device and flash it to your vehicle.

Important Notes:

• This product is for off-road use only
• This product does not include any hardware or devices.
  

Upgrade your GM Duramax with a custom tune file built for performance. Our expert team ensures that every file meets your vehicle's exact needs for optimal results.