i have them too, not to sound like a n00b but i cant remember my setup. i know I have 19s with 265 in the back, had them for 8k miles and still look like they are brand new (i drive hard too). So far so good.
Black saphire 335i coupe, coral red interior, BMW performance kidney grill, 6 speed manual, UR catted downpipe, 30% all around tints, 19in staggered ST1s, more mods to come!!