Yesterday I replaced my stock tires at 8,000 miles. They had lost their grip. The compound must have gone south because I could easily spin the rear wheels. While fun watching the traction control kick in and feeling the grip come back I did not trust the cornering grip so I did some research and read a lot of tire reviews from this site and others. These were my choice.
http://www.tirerack.com/tires/TireSe...ype=bestseller
Hankook Ventus are great tires at a very good price.