I want to get a better tire for my 2006 mazda 6s so that i can get better traction at the track. THese stock all season tires suck. I know my stock tire size is P215/50R17. Does any one know what the widest tire is that i can fit on my car with stock rims. I just need two for the front, im not worried about the rear. Ill just be throwing these on at the track. Also what is a good tire for track use without buying a slick that would fit on the car!