I think the tires on your car are very good. Just by going wider you will improve grip. The spacers will improve stability a little also. I would go w/15s all the way around w/that set up. I was looking at tires for my 06 350, and thought the michelins wore longer and had the same grip as the bridgestones. They are very expensive though. I'm not a tire expert by any means. The BF's are a good tire too, just very loud. There has been a discussion about tires on other threads. You may want to check it out.
|