if i remember it correctly stock is 215/55/16. you can go narrower 205/60/16 or even 195/65/16 or 195/60/16. if i had to choose i would stay either 215/55/16 or 205/60/16. rule of thumb is to go one number narrower for winter tires, so if stock is 215 then you can go 205. with this logic 195 would be even better, but 195 seem kind of narrow for your wheel to me.