Hey guys I'm going to do a jdm swap to a 2002 dx model civic what do I do for vtec to work?

Swap harness and ecu and get it flashed for keyThe ecu and harness I got is from a future k swap shell I have they are both automatic
Will it work no issues and what about o2
Or direct swap not running vtec until I get proper ecu and harness
Or use dx harness swap out ecu get it flashed for key and wire in vtec
or direct swap and buy vtec controller not worry about o2

Please help guys I'm doing this swap this weekend any info helps