Originally Posted by Dan Root
If the front was the same 225x40x19 it would be 1/2" taller,if they made 215x40x19 it would be almost the same but little less in width.
Actually, to keep the same overall diameter the stock 225/40/18 is roughly equal to a 225/35/19 (2.5mm taller).
The tire you recommended, a 215/40/19 would be 17mm taller and 10mm narrower than stock.