jwtt

what size of tires should I use for my S4 if I have a set od 18x8.5 wheels? 225/40 or 235/40? thanx

BIG NIPPER

40 series if you aren't slammed...but I think 35 series looks better if you car is slammed. But then again there is a tradeoff, the 35 series will ride harsher and also provide less protection to your wheels then the 40 series will. It's all about what you want. I personally have 40 series (18"), but if I were to change over to larger rims (19") I would go over to 35 series because of the increase ride height.

-Eric

ProjectQuattro

mine 18" 8.5 are coming with 235x40x18