i wanted 19"s but was told they dont make them anymore by wheelbase ,i have an account with them so i get a good deal when i buy ther wheels,they also said they would not fit with brembos but im not so sure as ive seen them advertsd elsewere for 350z s with brembos
as far as the zed goes i wouldnt listen to any on mass wheel suppliers, they never seem to have a clue as they just dump the reg in thier system and it spits out some wrong numbers.
Do your research as to what looks good and what look you want to acheive, then check with the wheel manufacturer or do some hunting around to see if they are still produced. remember, these guys just want your money, so if they dont have the 19's of course they will sell you onto some 18's which imo will look like a bag of ass with those style rims.