What kind of sizes would be good if I was running 17x7.5s & 17x8.5s in the rear? I really want some good traction and handling, and I really don't want the streched tires look.

Thanks for all the input.

 

225/255, but it might look a bit chunky depending on what kind of tires.. you could always go with the OEM stagger 225/245.

personally, i would probably try to go with a 225/45/17 up front and a 255/40/17 in the rear

 

Actually, the OEM stagger for AP2 is 215-45-17 and 245-40-17. I would suggest either that combo or the other one of 225-45-17 and 255-40-17.
It would also depend on your offsets...

 

what is better for the rears if i put in 255-40-17? 8.5inch rims or 9 inch?

im very confused

 

The tire size would be determined by the offset of the wheels you have. The lower the offset and I would go with the 215/45R17 and 245/40R17. With a higher offset I would go with the 225/45R17 and 255/40R17.
If I can help let me know.

 

What is the lowest offset that is safe with the 225F/255R combo?

In the autoX FAQ, it says some use 245F/275R in Stock class. Does it require rolling the fender to fit those tires in the wells? Is it safe to mount tires of that sizes on the stock wheels (only 8.5" width)?

 

I don't think a 275-40-17 would look so hot on a 8.5 inch wheel. That is just me though....