I am purchasing 18x9 +45 in about 2 weeks time with H&R drop already installed and fenders already rolled...235/40/18 tires. Its all about offsets, tire sizes, and fender rolling that determines what will fit.
i just installed mrr GT1's they are 18x7.5 with a 48 offset, and the rubber is falken fk452's that are 225/40/18, i also installed the H&R sport springs and there is absolutely no rubbing issues