[Super Bleeder!!]

i used to want an MR2 really really bad, so i know a little bit from being on their forums for years.

there is a turbo oil feed line that is really hard to get at, so difficult in fact they dubbed it the "Hose From Hell." it likes to leak, go to the mr2 forums and do a search.

do not put an afc on it either, when you start messing with the fuel control the car freaks out and pulls tons of timing. the bottom line is the ECU hates to make power. if your bro wants a little bit more power just tell him to find the jap spec CT20b, its the 240hp stock turbo over there. good for almost 300whp.

the intercooler as shane said, is a big pain in the ass because no matter how "big" it is its still sitting inches away from the motor in a poorly ventilated enclosure. lots of guys fab up heat walls out of thermo-resistant foam or whatever they have lying around.

good luck