I finally got rid of my worn out Michelin PS2's and replaced them with these XS tires. These tires are supposed to be the best/fastest of the new crop of high performance street tires so I'm pretty psyched. C&D tested them and they were a full second faster than PS2's on a 1 minute autocross course. Grassroots Motorsports mag also did a comparo and they came out on top. I'm doing a HPDE down at Gateway in STL this Saturday and several autocrosses in the next month so I'm eager to see how they do.
Best part is they cost $773 shipped from Tire Rack in 18" sizes. I'll let you guys know how they compare to the pricier Michelins.