I would avoid running them. 225/60/16 are 1.75 inches larger in overall diameter than stock 205/55/16. This may cause some serious rubbing as your suspension moves up and down, not to mention if you turn your steering full lock. Unless they're already mounted on rims I'd think twice about mounting a 225 series tire on a skinny 6.5 inch wide OEM Mazda rim too. Additionally, this tire will make your speedo read about 7% slower than you're really moving.