Loveless wrote:17x9" +15 front with 235/40/1717x0" +12 rear with 255/50/17. does that sound good to you?
I had the same set-up but I went with 235/45s' the next time I got tires.
When I ran 235/40 up front but the ride quality was sh*t and those reflector things on the highyway when changing lanes sounded like my suspension was being ripped out from underneath the car.
Plus with 235/45 - 255/40 your overall tire diameter and sidewall height front and rear are pretty much as even as they are going to get. However to make that statement more true you would actually need to run a 265/40 out back and then sidewall and tire OD would be damn near perfect but good luck finding that size. They make that size but only 3 tire companies carry it and lowest price was about $160 a tire.
I will take pics of my car tomorrow and show you what 235/45-255/40 looks like.