youre done.
first off, any CRX with just one of those mods (turbo or nitrous) will decimate a GT, especially from a roll. From a stop, you might get him for a gear or two, once he hooks hell shoot right past you like nothing. either setup will easily run 13's when driven correctly, and will not blow up like stated above. ignorance is bliss sometimes.
If its really built to handle boost and nitrous, hell id bet it would take quite the setup on even a terminator to take him down. hes light as ****, with that much top end potential he probably has the same hp/weight ratio as a 'busa, if not better.
if anything, id run him just out of the rush of racing. if he wins, more power to him, its a badass little car when done right, and if he did it right, id give him definite props for doing it. no need to let personal feelings get in the way of the reality he has a pretty sick car. I hate honduh's and ricers too, but i wont let that get the best of me if i lost to one, i give him props and move on.