The 16" 2. generation stock rim has a width of 6.5", thus a 235/60-R16 fits at maximum. I switched from the 225/60-R16 stock (2003-04) to the 235's and that worked out perfectly well.
BTW, that switch is less than 2% difference, compared to stock.
BTW, that switch is less than 2% difference, compared to stock.