ORIGINAL: Harley Condra

Sorry to hear about your loss, but remember that the electronics mounted under the engine cowling (Starter, RPM and Thermocouple) have to be able to communicate with the ECU. I doubt that JetCat would have designed their on-board electronic package to be compatible with any other brand ECU.
In order to switch ECU types, you would need to change the thermocouple, RPM sensor and starter to a compatible type.

Harley Condra
BVM REP
JetCat REP