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8′ MegaSquirt Wiring Harness (MS1/MS2/MS3 Ready)
$83.00MegaSquirt Wiring Harness - 8 Feet Long We've completely redesigned our wire harness to help you get your fuel injection installation right the first time with several new features to help make your installation as easy and reliable as possible: ...
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MS230-K Kit with MapDaddy4 Upgrade
$352.00MegaSquirt-II Engine Management System with 3.0 Main Board - UnAssembled Kit; Part # MS230-K_m4 The MS230-K kit includes everything you will need to build your MegaSquirt-2. The genuine B&G partial kit with PCB3.0 (note: BIP373 coil driver is sold...
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MegaSquirt-II Programmable EFI System PCB3.0 – Kit
$294.00MegaSquirt-II Engine Management System with 3.0 main board - Unassembled Kit with Black Case; Part # MS230-K The MS230-K kit includes everything you will need to build your MegaSquirt-2. The genuine B&G partial kit with PCB3.0, the Bill Of Materia...
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USB to Serial Adapter -TunerStudio
$22.49This USB to Serial Adapter has been tested and works properly with all versions of TunerStudio. We highly recommend this adapter is used if your tuning PC/laptop doesn't have a DB9 Serial connector. Or you can use another adapter with a genuine FTDI c...
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MegaSquirt Relay Cable
$89.00High Quality 4' Relay Board cable for connecting your MegaSquirt ECU to your Relay Board. Works with MS1, MS2, or MS3, all standard main boards (includes not just the IAC and ignition pins - it also has the spare pins on 3 through 6). It has a shielded...
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JimStimX Expansion Board – Unassembled
$47.00The regular JimStim can test the main board on your MS3. But what if you'd like to see the inputs and outputs on the MS3X expansion card in action, too? Now it's easy - just add a JimStimX! Use the three pull-off jumpers on the JimStim to connect the 5 vo...
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MegaSquirt Wiring Bundle – 23″ Long
$15.99MegaSquirt Wiring Bundle - 23" Long Perfect for creating your harness adapter (perhaps using a DIYBOB along with this) or for tying into your stock wiring harness! 23" TXL wire, color coded with labeling printed on the wire every 3 inches -- no p...
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DB15 Pigtail Harness
$21.00DB15 pigtail harness. Used for optional outputs on the expansion connector on V3.57 boards and for the V1.2 version of the MSPNP Gen 2 (the version with the red main board).
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DIYAutoTune Braggin’ Rights T Shirt- Black
$14.00'Official' DIYAutoTune Braggin' Rights T Shirt; Various sizes available in black. Have you built your own MegaSquirt and begun leaving others in the dust? Now, you can brag about it! Tell others "I built my own standalone engine management system,...
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DB15 Metalized Plastic Backshell
$2.50Metalized plastic backshell for the DB15 spare I/O connector, as used on our DIYPNP, VVTuner, and V3.57 boards.
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MegaSquirt PCB3.0 – Case, Endplates and Heat Sink – Black Anodized
$39.99Part # MSx30-CEPHS_BL; MegaSquirt Case with Flanged Endplates and Heat Sink Machined for MegaSquirt using PCB version 3.0 Black anodized Case with Endplates and Heat Sink custom machined for a perfect fit!
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Zeal Engineering Daughterboard with Dual VR Conditioners
$37.00The 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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Metal DB37 Cover with Hardware & Gaskets
$9.49Metal 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
$2.49This 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
$2.49DB37 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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Jumper 10-Pack
$7.4910-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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MegaSquirt 2
MegaSquirt 2 (MS2) is the second generation, available pre-assembled or as a kit for self-assembly, targeting engines with semi-sequential or batch-fire fuelling and wasted spark ignition. The MegaSquirt 2 shares the same software as the MicroSquirt but most options will require hardware customization. The software is ready to support a wide variety of engines out of the box, with the ability to control anything with one to eight cylinders with batch fire fuel injection and up to four channels of logic ignition. Over 40 different ignition modes are supported, from mainstream applications like the GM LS1, Ford Zetec, Bosch Motronic, and Chrysler Gen III Hemis to unusual modes like Renix Jeeps and the Suzuki Swift GTI.
