I installed a set of Bilstein B8 Struts a couple of weeks ago after blowing my OEM struts. I guess the OEM strut doesn't like to be stressed on track with lowering springs, or maybe i got a bad batch. Either way the B8's are a decent upgrade over OEM.
I found out the weekend after installing them that I won a set of ST Suspensions XTA coilovers so those will be going in as soon as I get them, hopefully before my next track day. Next is brake pads and rotors.