inter-cooler
 

i know that this is not a Z forum, but i need some help if you guys don't mind.
i have a 1983 280 ZX Turbo, and i am looking for an inter-cooler, and someone said that they have one from a 1990 RX7 that they will sell me, and i was wondering what kind of boost that these inter-coolers will withstand, and where the inlets and outlets are. (same side, or opposite sides)

thanks