http://versaspeed.com/
I have gotten a few things over the years from bob including a nismo suspension which i don't think he carries anymore but plenty of other goodies still up on his site i last saw. Honestly with a decent set of rubber and some suspension versa grips and handles alot better than you would think. I personally went with motegi sp10 15x7 rims usually sticking with 185's(sometimes 205's) with a good set of all seasons and just straight up pick on all my buddies old 240sx and 300zx with summer rubber and coilovers. Personally i prefer 185's square because of agility, but 205's upfront and 185's in rear can give you that little extra grip up front to muscle the rear end around at slower speeds with was the only complaint about decent suspension and tires in square stance which is basically just a little hooliganism and not really down side per say