Instructions + Downloads

Here, you’ll find step-by-step installation guides, detailed tuning instructions for all our parts, and direct links to download the software you’ll need for your setup. We’ve also included quick access to TeamViewer so our tech experts can remotely assist you if required.

Need Additional Help? Contact Us

  • TeamViewer

    Secure remote access so our tech team can assist you directly on your computer.

  • HPTuners

    Software for reading, editing, and flashing your vehicle’s custom tune (Beta version required).

  • EFI Live

    Advanced tuning software for precise diesel performance adjustments.

  • EZ LYNK

    Cloud-based tuning and diagnostics platform for real-time vehicle updates.

  • MM3

    Touchscreen tuner interface for loading and managing custom tunes.

1 of 5

How To Log In With HP Tuners - PDF

HPtuners General Tuning Instructions - PDF

HP Tuners GM L5D/L5P Switch on the Fly User Guide 2022 - PDF

E41 ECM Upgrade Kit Instructions - PDF

HP Tuners How to Get ECM/TCM Readout - PDF

How To Log With HP Tuners- PDF

Find Serial and Auth Code - PDF

EFI LIVE 2001 – 2016 Duramax | 2006 – 2017 Cummins FlashInstructions - PDF

EFI Live Loading Tune Instructions AutoCal - PDF

DATALOGGING WITH EFI LIVE AUTOCAL - PDF

EFI Live Error Codes - PDF

How to read Duramax ECM and TCM EFI Live - PDF

How to Update the Firmware on the AUTOCAL V3 EFI Live - PDF

MM3 Vin license request instructions v2 - PDF

MM3 How To Change Power Levels - PDF

MM3 Instructions - PDF

2022 - 2024 Cummins Instructions - PDF

EZ Lynk Instructions - PDF