unless you know for sure, i think you should stop misinforming people. the inspectors are not stupid. they know how to read serial numbers on turbines and are able to tell which motor they are originally from.
they pick up on t28's on redtop sr's, but you don't think they'd spot a vg30 on an rb?
sometimes you may get lucky and have it overlooked but at the end of the day it's an induction modification, it alters emissions and in their eyes it shoudln't be there