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MegaSquirt Kit ECU

If you are looking for the lowest cost, rock-solid, fully tunable EFI and Ignition control solutions available, you’ve found it! MegaSquirt DIY EFI Un-Assembled Kits are incredibly well documented, clearly labeled kits where every component is labeled with it’s component number (to let you know where to install it on the PCB), as well as meticulous orientation and installation instructions. Additionally the documentation is very thorough, and walks you step-by-step through assembling your ECU, and stops along the way after major sections of the build to allow you to test the circuits you’ve built individually.

Tens of thousands of people around the world have successfully built their own MegaSquirt ECU and many of them successfully compete in a huge variety of motorsports. It’s not too hard for you to build your own ECU if you’ve got a bit of patience and are excited about the project and what you’ll learn along the way. Ever ‘painted by numbers’ before? It’s truly that simple to follow the directions and build your own ECU, by numbers.

EPA, CARB & Emissions Disclaimer- All ECU's are for race purposes only. It's your responsibility to remain in compliance with all federal, state, provincial, or other laws that apply to you.

Showing 33–46 of 46 results

  • CPU – MegaSquirt-I CPU

    $999.00

    MegaSquirt-I CPU; Motorola 68HC908 microprocessor loaded with standard B&G MegaSquirt-I firmware version 3.0. This part is discontinued - sorry, we've sold out the whole stock. For use with any MegaSquirt PCB version 1, 2.2, 3.0, 3.57...

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  • PCB – MegaSquirt Relay Board PCB Only

    $30.00

    MegaSquirt Relay Board PCB PCB Only for building a MegaSquirt Relay and Power Board. Complete Bill of Materials (parts listing) and schematics can be found HERE. Click HERE for a fully assembled relay board.

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  • TransStim PCB

    5 out of 5
    $30.00

    The TransStim simulates a 4L60E transmission, and several others. This is the bare PCB to make one TransStim. Use it to test your MegaShift or other transmission controller. The TranStim™ will help you to: Validate and troubleshoot a newly built...

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  • Jumper 10-Pack

    5 out of 5
    $7.49

    10-pack of wire jumpers in 5 colors. These fit 0.1" headers and are used on the JimStim to make connections for testing additional circuitry.   There are several other uses for them too.

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  • DB15 Metalized Plastic Backshell

    $3.00

    Metalized plastic backshell for the DB15 spare I/O connector, as used on our DIYPNP, VVTuner, and V3.57 boards.

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  • DB37 Solder Cup Connector for MS3X

    $6.50

    To make sure you can't accidentally switch the upper and lower harnesses, the MS3X harness uses a male DB37 connector instead of a female one.  We've packaged a DB37 male solder cup connector and a metalized plastic backshell for your MS3X builds. See t...

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  • Zeal Engineering Daughterboard with Dual VR Conditioners

    $43.99

    The Zeal Engineering Daughterboard was designed and developed by Ken Culver, one of the authors of the MS2/Extra and MS3 firmware.  We're proud to now offer this daughter card in kit form. It was originally developed for the FC RX-7, but we have found it...

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  • USB Tuning Cable

    $7.50

    USB A to Mini B cable. Use this with the following products: MS3Pro EVO MS3Pro Ultimate CAN-EGT MS1 or MS2 V2.2 or V3.0 modified with DLP-TXRX mod kit We include this cable with MS3Pro EVO & Ultimate. Does not fit MS3 V3.0 or V3.57.

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  • Metal DB37 Cover with Hardware & Gaskets

    4 out of 5
    $10.50

    Metal DB37 Cover with Hardware and Gaskets This Metal DB37 cover is perfect for building up your own Megasquirt wiring harness or relay cable connector.

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  • DB37 Metalized Plastic Backshell

    $2.99

    This is the 937GME-ND metalized plastic backshell cover included in our basic Megasquirt kits. It's not the same as the massive AMP metal cover used on our harnesses (that's sold on its own under wiring components), but it is cheap and effective if you're...

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  • DB37 Solder Cup Connector

    $3.00

    DB37 female solder cup connector, as included in our Megasquirt and relay board kits. Use this if you're making a new harness and prefer a soldered connection. This is the connector only; the backshell is sold separately.

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  • DIYPNP Upgrade: Ignition Module and Heat Sink Kit

    $12.00

    High current ignition driver kit with heatsink designed for the DIYPNP ECU.  It includes the OnSemi EcoSPARK IGBT.  This is the same high current ignition driver as used in many of our current ECU products as well as the QuadSpark ignition module, after...

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  • MegaSquirt PCB3.0 – Heat Sink Only

    $10.00

    Heat Sink Machined for MegaSquirt PCB version 3.0 Part# MSx30-HS

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  • MegaSquirt Tuning Cable (DB9 Straight Thru)

    5 out of 5
    $6.00

    DB9 6' Male/Female Straight thru cable for tuning and testing your MegaSquirt ECU.

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