So now I am running a 245/45/18 18x8 rim 35 offset on my 07 es350 no problems. You can use the tire calculater on line to see the difference with the tires both stock and what you want to .l went from stock 215/55/17 to a 225/45/18 now to the wider 245/45/18 and just a hair taller with no problems and no modefications to car .The ride is even smoother. Hope that helps.