i finally convinced the old lady to let me get rims from the ex, well i finally mounted them other day...they are 20' boss 335 rims, mounted on a 255/50/R20 Pirelli Scorpion Str's. They basicly are bolt on, there is a little play but im gonna order centering rings in a couple of weeks, but the guys at the tire shop said i should be fine though...let me know what you think guys...