You just want the rim? or the whole wheel? . J/k .. Do a little searching on here. This has been discused many times. 17's or 18's are a little big on the Z IMO. You need a wheel with 0 offset. Decide on your intended use for the car before you choose a wheel. If you're just going for the bling/show factor, then it dosn't really matter what you put on there. If you want to race or even have a good daily driver, then the wheel should be matched to the occasion.