The fronts do. The camber changes and gets even more negative on turns, so the front tires get chewed up bad. The back probably will not suffer badly. You can always just put the tires and drop it, and then go to a tire shop. There's a lot of places (at least around here) that will do a free alignment check. I put in a camber kit this weekend, and got my front camber to -.6
I was tired of seeing how bad my fronts would wear.