when you order the ecu you tell on which bike you will plug it and they send you the proper wire(for Xt660 or raptor any any other injection bike) and you plug it straight away by removing the stock ecu and connencting the new one,and also you have to unplug the immobiliser wire under the fuel tank to work properly on xt660.The map is 3d you have to set all air-fuel-advance-ignition to work properly,i think there was a topic with the links

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XT660X STOCK