MegaSquirt 3 ECU with MS3X Expansion 14point7 Only pin the options you

Only pin the options you will be using

etc) for one coil/distributor (7 pin HEI for example) and Ford’s EDIS systems

HT-186123 GM LS 2-Pin Bosch Alternator Harness

weatherpack 755

Speed density or Alpha-N

MegaSquirt 3 ECU with MS3X Expansion 14point7 Only pin the options youImportant Note: Due to supply chain challenges and the lack of ability to have parts anodized at this time, we are transitioning to brushed silver enclosures. We appreciate your understanding. The MegaSquirt 3 with MS3X expansion arrives equipped with features surpassing MS2 & MS1 systems, like sequential fuel & spark, 2 step, progressive nitrous, boost control, onboard traction control & much more! MS3X paved the way for the powerful MS3Pro systems