Xcelerator Updates

Online Update for Duramax Economy, Standard and Hot Xcelerators

Please fill out a warranty return form

IMPORTANT: Return your vehicle back to "stock" prior to updating your programmer with this update!

Your Xcelerator must have a side plug. Additionally, you will need a USB cable (USB-A to USB-B) to connect your Xcelerator to your computer.

Click to Download

  1. Download the current update and save the file to your Desktop.

    2. Filename: LMM_244_Update.zip

    TheLMM_244_Update.zip file will contain six files:

    • CDM 2.02.04.exe
    • FTD2XX.dll
    • PECan_244_Update.bin
    • PPE_Updater.exe
    • TEXT 11-19-07.bin
      •
    • TUNE 9-29-2009.bin **NEW FILE**
  2. Extract these five files into a folder by right-clicking your mouse on the LMM_244_Update.zip file and selecting "Extract All...".
  3. Open the folder that contains the five files...
  4. Double-click on the CDM 2.02.04.exe file (this will install a device driver that allows your Xcelerator and computer to communicate with each other). A black DOS window will open and driver will be installed automatically. Once completed, "Press Enter" will appear. Press the enter key and the black DOS window will close.
  5. Double-click on the PPE Updater.exe file (this is the program and it will allow you to install several updates into your Xcelerator).

    Your Xcelerator should not be plugged in until you double-click on the PPE Updater.exe file.
  6. Plug in your Xcelerator using the USB-B plug of your USB cable. Be sure the USB-A is plugged into the USB port of your computer.

    The PPE Updater program has detected your Xcelerator.
  7. Click on the "Update Tuner" button in the PPE Updater program.

    Select the PECan_244_Update.bin file and click "Open".

    Do not unplug your Xcelerator while the PPE Updater program is running...

    The PPE Updater program will have succesfully updated your Xcelerator if you see this dialog box. Click "OK".

  8. Click on the "Update Tuner" button in the PPE Updater program.

    Select the TEXT 11-19-07.bin file and click "Open".

    Do not unplug your Xcelerator while the PPE Updater program is running... Once Text file has completed uploading, the green box will say "Module is Program...." and the update tuner button will re-appear.
  9. Click on the "Update Tuner" button in the PPE Updater program.

    Select the TUNE 10-29-2009.bin file and click "Open".

    Do not unplug your Xcelerator while the PPE Updater program is running...
  10. Once all updates have completed, close the PPE Updater program and unplug your Xcelerator.

Congratulations! Your Xcelerator is up-to-date.

Unzipping Software Download

RARLAB: WinRAR 3.80 Click Here

  • If you are having issues opening the Upgrade files or your computer doesn't recognize the folder type, you may need to download WinRAR.
  • Click on provided link above, and select the first link WinRAR 3.80
  • Run and install WinRAR 3.80 Trial version.