im getting 18x13 forgelines in the back and 18x10 forgelines in the front. If your going to run a slick do not be another bias-ply car. I had slicks in the back and radials in the front on my previous supra and going down the track felt like sliding on ice and was very unstable at high mph. The car feels like its rolling/hydroplaning when its not and the only thing you can do is keep the wheel straight. If your going to get slicks make sure you get skinnys up front too, just my opinion on the issue.