Thread: Tire Size question

Hello everyone I have a quick question about tire sizes on the GXP. I currently have the stock alcoa rims on the car (18x8 on front 18x7 on back). Is it possible to run 235/50r18 on all four corners or 245/45r18? Or what same size tire could be used on all four corners? Not looking to rotate them because I know the rims have different sizes I am just looking for the same size tire. Currently looking for tires and with the staggered set up the selection is limited so any advice would be appreciated! Thanks!

I put a 225/40/18 on the front and had the oem size 225/50/28 on the back and car was doing crazy things like abs was actuating at random times. I don't know if that size would be ok on all 4 wheels, but I think having the same size tire would be fine. I ordered a set of 225/45/18 to put on an extra set of wheels that I have that are 18x7.5 and I'm hoping they work.

So 245/45r18 should work? They’ll fit on both the front and rear rims without rubbing or anything?

Originally Posted by stealthee

225/45/18 are only going to be 25.9" tall. That's .8" shorter than stock.

that is fine with me, hopefully I won't need to adjust the tire size with the hp tuner. I went with this size because they were the cheapest ones I could find.