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EFI Live

2001 - 2010 Duramax 2500 3500 4500 5500 | EFI Live

2001 - 2010 Duramax 2500 3500 4500 5500 | EFI Live

Regular price $400.00
Regular price Sale price $400.00
Sale Sold out
Tax included.
Tune File Option
Select Device or License Type
Select Physical Switch

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.

Tuning Benefits:

  • Increase in Mileage
  • Increase in Horsepower
  • Increase in Torque
    Compatible with:
    • 2001 - 2010 LB7 LLY LBZ LMM 2500 3500
      • Pickup and Cab Chassis/Incomplete Trucks
    • C4500
    • C5500
    • Kodiaks
    • Cargo Vans
    • LMM 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

    Tune Stock Trans HP Built Trans HP
    HTOW +15HP +30HP
    Eco +30HP +60HP
    Street +60HP +120HP
    Race +100HP +160HP**
    Max +120HP +230HP


    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 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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