I found some new rims that I want to put in on 06 GT. They are 20x8.5 in the front and 20x9.5 in the back, I was just wondering what tire sizes I should be looking for. The recommended tires I've heard are 255/35/20 and 275/35/20 in the rear, but then I've heard people talk about different sizes, so I just wanted to find out what the best size would be.

Thanks.

The sizes you referenced are the ones that we suggest for your car as well. I think those would work out best.