When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Yeah, i just spent like 45 mins reading through this, but couldnt find exactly what im looking for. Seems like most people are talking about 19s and 20s.
You'll be fine, be sure to get hub adapter rings (assuming the wheel bore is greater than the Infiniti 66.1mm size) to keep vibrations away. And a 245/45/18 is the widest I'd run with a 235/45/18 about ideal.
Also you will need new lug nuts, conical seat lug nuts 12x1.25 size. The oem mag-style lug nuts w/ washers won't work.