Well its time for new tires because my yokohamas are bald on the side wall. My dads friend is an owner of a tire shop and is a major distributor for Toyo tires so he can sell me some Toyo Proxes 4's for $110 a tire. My dad wants me to put the biggest size possible but I have read some post about how if you have too big tires it will actually slow it down or mess up the tranny. So I have two qustions
1. Should I even go with Toyo
2. What would be the biggest size that I should get.

EDIT: Heres a pic of the tire.