Have a 06 STS with 17" stagger wheels. I want to replace them with a 18" after market rim. What would be the biggest size tire I could put on the new rims without having a problem with them rubbing on the front. Also what offset should the new rims have. What is the offset on the stock rims.
Thanks

Go to Discounttire.com or tirerack.com

also do u want staggered again. i heard u can get 10" on the rears and 8.5" on the front. I havent tested 10" on the rear but I dont think that much tire is needed for everyday driving.

Don't trust Discount Tires fitment guide....bought a set of Chrome 20's for my 2006 Honda Pilot and they recommended 275 tires. They rubbed, Wound up doing the research and discovering that 255's were as big as I could go. Discount was good about the swap, though; they only charged me the difference. Check out www.1010tires.com for a great tire size calculator.

also do u want staggered again. i heard u can get 10" on the rears and 8.5" on the front. I havent tested 10" on the rear but I dont think that much tire is needed for everyday driving.
No I don't want to staggered again I want the same tire and wheel size on all 4 so I can rotate. Also what offset should I be looking for?

Size matters:D

should be on with 35-40 offset, but double check with a pro who does it for a living.

255's fit all around, OEM. Bigger may, too.

Go with 245/45/18 they fit perfect on my car.