Hey first post.

**Pontiacforlife305** · 05-11-2015

I have a 04 grand prix GT and I want to get wide tires but is that even possible? If so what is the max width I can use?

**Fivefingerdeathpunch** · 05-11-2015

Without knowing your time size, I can't tell you exactly.

But I will tell you what I do know. For 16's stock wheels, 245/50/16's can be done, anything else really wont work or there dont even make a size bigger

17's, no idea.

18's, the primany size is 245/45/18. That will fit nearly every rim you'd want to run, rim width and offset will be your other big factors.