thanks for the comments everyone, the only part that comes off is the rear bumper (and the taillights on the rear bumper are all one piece that is held on by a screw)
i havnt tried slammed rims (dont want to) but i'm pretty sure you could get them to fit.
as for the question of "does it drive nice?" - please read more, i put this body on an old evo chassis with a lot of upgrades and have not driven it since i put the body on it, i have not run the xmods street chassis, and dont really plan to, it has a shelf queen body on it.
for any underglow questions please refer to my tutorial here:
http://www.xmodsource.com/forum/showthread.php?t=11258