i'm tired of race-prepped mini's and svt focus's (foci?) beating me at my local scca races, so i bit the bullet and purchased some falken azenis rt 615's to replace my all seasons! i decided to get the stock 215/45-17 size...mainly b/c no one had the 225's in stock. as a part owner of a lotus elise...all i can say is OMG my si can corner!!! gone is the neutral feel, the squealing and howling...now i welcome crisp turn ins with amazing tracking and predictability. i knew that my stock tires were holding me back from me putting my car exactly where i want to on the track. i highly recommend these tires for anyone who tracks their car once a month or so. the ride is the same as my all seasons. the car tracks perfectly. road noise is non existent, but i am worried about the 200 tread wear rating.