need help....ecu imobiliser

sold engine ecu gbox loom, the guy i sold it to is puttin it into a mini, he said he need the imob as the ecu wont work without it is this correct, it sounds right but just checkin, if so what and where are the piecesi need to remove? and the fobb…etc …does any of this affect my honda instal? im thinking it wont but again just checking,

What Immobiliser have you got ? The META system is complete seperate from the ECU …

it whatever is on the standard car?