I did a search on tires in the forum to try to get some info on tires. I have the stock 245 45 17 on my Mustang and its time to put new ones on. My neighbor has a Mustang Cobra and uses Continental Extreme Contact tires in a 255 40 17 size. I was wondering if any one here uses these tires and would give me some feedback on them. I checked tirerack.com and the reviews were good but I wanted to hear from Mustang owners. Also can I put the 255 40 17 tire on my Mustang and would it make that much of a diffrence??

Thanks