Anybody care to lend a helping hand as to what size tires i would get if i were to get 17x7's and 17x9's for my TII?

 

here...try this link. It will help you calculate the correct sizes. Its pretty self explanitory. Just input your stock size and then mess with the new size until the ratios are close.

http://www.miata.net/garage/tirecalc.html

Let me know if you have issues and I'll help you out further...