Planning to change wheels of same size or are you going up 18s or 19s?
If you're upsizing, keep the new wheel width 8.5" or under & the offset +45 or higher. Going wider or getting more poke than the above limits will require rolling fenders or getting more negative camber or both.
Tires? On a +45 offset & 8.5 wide wheel, going wider than 225 will cause some rub on full load, turns & dips. For 18s, stay aspect ratio/profile of 45. For 19x8.5 et45, go 225/40/18. These tire limits are slightly bigger in outside diameter, but fitment will be fine....your speedometer, however, will show you speed & distance slower & shorter, respectively, than the actual.
Sample of 19x8 et45 wheels w/ 225/40/19 tires:
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