This is for people who purchased a Microsquirt ECU before they were aware of our plug and play kit and now they want the harness to simplify their install without having to buy another Micrsquirt ECU. If you need any of the other items listed as required below, we offer them individually in other listings (MAP, IAT, Hose), 

This harness is designed to control a Ford 2.3 turbo, supercharged, or naturally aspirated engine with TFI distributor in any chassis when running a Microsquirt ECU. 

Includes:
-Complete Engine Harness
-Startup Guide (11 pages)

Additional Microsquirt Harness Options
-Wideband Direct Connect Modification -When purchasing the Microsquirt harness above, along with a Spartan or AEM wideband controller, we can modify the wideband's wiring so it will connect directly to the Microsquirt harness by simply plugging in a connector. This is only available when purchasing the Mircrosquirt harness and wideband at the same time. 
-Wideband Connector Pigtail - For those who are going to use a wideband from a different company and don't have a Weatherpack style crimping tool to terminate the wideband wires with pins, or are buying the Microsquirt & wideband at different times, this is the mating connector for the harness' wideband connection with wires already terminated and ready to connect to your wideband controller wires with solder & heat shrink, or standard crimp connectors.

Communication Method: The Microsquirt harness uses a 2.5mm port by default. The communication method allows you to select what sort of cable you want to use to plug into this 2.5mm port. You've got the option of converting directly to USB (USB to 2.5mm), to USB via a serial to USB adapter (the 9-pin serial cable + a USB adapter cable), or using a 9-pin serial cable (Serial DB9 to 2.5mm). 

Requires (Not Included):
-Microsquirt ECU w/Communication Cable
-GM 3-Bar MAP Sensor
-GM IAT Sensor
-MAP Hose
-Wideband o2 Controller w/Sensor

*Note listing image shows other required items that are not included or are optional in this listing.