$299.00
In stock
MS3Pro ULTIMATE Complete 8′ Flying Lead Harness Only (White-Black-Gray connectors with 8′ pigtails) arrives with color-coded, printed wires per the pinout below.
All applications.
MS3Pro ECU Comparison (1st Gen – EVO – ULTIMATE)
My race car is already wired for 1st Gen MS3Pro, can I upgrade to EVO or ULTIMATE?
Yes. The pinout is slightly different, so you will need MS3Pro 1st Gen Wiring Harness Upgrade (for EVO / ULTIMATE)
These are the proper GM-style sensors for use with the MegaSquirt line of ECUs and come with the weatherproof connector and crimp pins. Suitable for use as a coolant temperature or oil temperature sensor, and is occasionally used as an air temperature s...
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MS3Pro ULTIMATE adds nearly 50% more I/O with the addition of a third AMPSEAL 23-pin, 8' flying lead. Harness arrives with color-coded, printed wires per the pinout below (black center connector)***Center Harness ONLY in this listing ...
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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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If you have a previously installed MS3Pro harness (1st Gen flying lead or LS Drop On Harness) and want to upgrade to MS3Pro EVO or ULTIMATE ECU, the upgrade path is simple. However, complete functionality will require a few basic changes to your 1st Ge...
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We've wrapped a 1K, 1/4 watt resistor in a sealed and strain-relieved package for underhood use. Blue heat shrink tubing with blue leads. Suggested uses include a pull-up resistor for Hall effect and optical sensors, and for spark outputs C and D on a Mic...
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MegaSquirt Wiring Bundle - 23" LongPerfect 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 ...
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