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EFI Live

2011 - 2016 LML Duramax 2500 3500 4500 5500 | EFI Live

2011 - 2016 LML Duramax 2500 3500 4500 5500 | EFI Live

Regular price $500.00
Regular price Sale price $500.00
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We've revamped our tune file processing system! After you place your order, you'll receive an order confirmation email that includes a tune form to fill out out your vehicle. You can also view this at the top of the website. This helps us get all your tuning information in one place to process it quickly.

**If you purchased an EFI LIVE License ONLY for $125, you are confirming that you already have a flash device (AutoCal or FlashScan). If you do not know what either of those are you need to select the AutoCal Device + EFI Live License option to flash your truck.

Unlock the full potential of your Duramax engine with our advanced tuning technology, offering a range of benefits to optimize your truck's performance.

Experience an increase in mileage, horsepower, and torque with our tuning solution. Say goodbye to stock performance limitations and hello to enhanced power and efficiency. Our tuning solution is compatible with 2011-2016 LML Duramax 2500, 3500, 4500, and 5500 trucks, including pickup and cab chassis/incomplete trucks, LGH Express Vans, and LGH Cutaway models.

Customize your truck's performance with our tune power levels, ranging from stock (optimized) to 200HP. Whether you need heavy towing capabilities or want to maximize power output, our tuning solution has you covered. Please note that all vehicle and transmission tuning requires an EFI Live AutoCAL Device + Licensing for installation.

In addition to power gains, our EFI Live tuning also includes transmission tuning features such as earlier converter lockup, increased line pressure, new shift strategy to prevent sluggish shifting, earlier downshift with less throttle input, and torque management for improved shifting performance.

Don't settle for stock performance limitations. Upgrade your truck's performance with Same Day Tuning's EFI Live for 2011-2016 LML Duramax. Order now and experience the thrill of enhanced power, efficiency, and performance.


Tuning Benefits:

  • Increase in Mileage
  • Increase in Horsepower
  • Increase in Torque

Compatible with:

  • 2011 - 2016 LML Duramax 2500 3500 4500 5500
    • Pickup and Cab Chassis/Incomplete Trucks
  • LGH Express Vans
  • LGH Cutaway


  • All vehicle and transmission tuning require an EFI Live AutoCAL Device + Licensing for installation, unless the individual already has an EFI AutoCal or FlashCal Device and the appropriate Licensing.
  • A Windows based computer is needed to flash the tuning into your vehicle/transmission.
  • Detailed instructions come with every tune on how to download a simple file onto your AutoCal and onto your vehicle.

Tune Power Levels:

  • Stock (Optimized)
  • 30HP (Heavy Tow)
  • 80HP (Light Tow -12k Lbs and under)
  • 120HP
  • 150HP (Lift Pump Required)
  • 180HP (Lift Pump Required)
  • 200HP (Lift Pump Required)

The DSP5 Tune comes with Switchable Tuning for the 2011 - 2016 LML Duramax 2500/3500/4500/5500, the DSP5 Tune comes with 5 Switchable Tune Power Levels (30HP, 80HP, 120HP, 180HP, 200HP).  With the DSP5 Tune user(s) can choose between power levels on the EFI Live AutoCal Device or by installing a physical DSP5 Switch for Tune selection, it is HIGHLY recommended to deploy with a DSP5 Switch for ease of Tune selection.

Transmission Tuning Features: 
  • Earlier Converter Lockup
  • Increased Line Pressure
  • New Shift Strategy to Keep From Sluggish Shifting
  • Earlier Downshift with Less Throttle input
  • Torque Management

Detailed instructions come with every tune from how to download a simple file onto your AutoCal, to how to load the tune onto your vehicle.  If you still need assistance, don't hesitate as our world class tech support is offered on ALL purchases!

How to get authentication code and serial number for license for those that already have an EFI Live AutoCal Device

  • CLICK HERE for instructions off of EFI Live's website
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