I was wondering if '06 (or '05 can't remember) stock tires/rims on a RX-8 will fit on a '08 Mazda 3.

I believe the RX-8 tires are 225/45/18 (not 100% sure on aspect ratio) and my current tires are 205/50/17.

 

It will fit. It has been done to death.......lol

 

Do you know if there will be any rubbing when I turn or something?

 

The rims would fit, but not with the stock RX-8 tires.

You'd need 225/40R18 tires instead of the 225/45R18's that came stock on the RX-8

I have a set we run on my wife's 6 and tried mounting them up on my 3 and they rubbed.