no it works like this
the powerfc you are buying is BCNR33 powerfc
the plug on that powerfc is the same as ECR33 powerfc
BUT
your car has ECR33 loom
which means it will plug in, but some of the wires are reversed and different
so if you were to plug in BCNR33 to ECR33 car it would probably short out or not work (worst case blow fuses, short out)
so in order to make it safely connect and all the sensors match
you use an inline patch kit and on the patch connector you make wire changes, ie flip wires, swap around, and in some cases, remove wires too
so your powerfc still remains a legit BCNR33 Powerfc the loom does all the hard wire work and then it connects to ECR33 loom
without the boomslang patch kit or one-touch connector before installing the BCNR33 powerfc you would have to cut wires, flip wires around etc
the plug is the same, but if you installed it, didnt do the wiring correctly and keyd-on it would either not work or fry shit
BCNR33 POWERFC ---> boom slang patch kit (with wire changes) ----> ECR33 loom plug under carpet
stock ecu ------> ECR33 loom plug under carpet
i tried to do what nengun has done here and the Mafia got it working ( i was too scared ) and cubes did it as well
they did it with std powerfc and not djetro