Megasquirt Downloads

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Here is a summary of the main downloads needed to support the Megasquirt products.

Not sure what product you have? See What Megasquirt have I got??

Remember that Megasquirt firmware is only licensed for use on approved Megasquirt hardware, see the license files included within the firmware zips.

Click here for Megasquirt web-based manuals.
Tuning Software
  • Java Run-Time (required)
  • TunerStudioMS tuning software
  • MegaLogViewer datalog viewing software
  • TunerStudio setup instructions

    Megasquirt 1, MSPNP, EMSpro

  • MS1/Extra latest stable firmware 029y4a
  • Alternate 'hires' firmware hr11d only or (hr_10g)
  • Instructions

    Megasquirt 2 (MS2), Microsquirt, DIYPNP, MSPNP2

  • MS2/Extra latest stable firmware 3.3.2
  • Development versions via forum
  • Old versions

    Firmware loaders: Windows - 32bit Linux - 64bit Linux - MacOS

    Megasquirt-2 setting up manual
    MS2/V3.0 hardware manual
    MS2/V3.57 hardware manual
    Microsquirt hardware manual
    Microsquirt-Module developers guide
    Megasquirt-2 TunerStudio Reference manual

  • Instructions

    Megasquirt 3 (MS3), MS3-Pro, MS3-Gold

  • Megasquirt-3 latest stable firmware 1.3.2
  • Development versions via forum
  • Old versions

    Firmware loaders: Windows - 32bit Linux - 64bit Linux - MacOS

  • Instructions

    Utilities

  • portcheck.exe utility (Windows only)
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    If you have a question, comment, or suggestion for this FAQ please post it on the forum.

    No part of this manual may be reproduced or changed without written permission from James Murray and Ken Culver.