Just wanted to report that...
after half a year of owning the ST BBK and 5 track days, these brakes have performed extremely well.
I drive in advanced solo and the BBK has been very consistent. No fade, no vibration, and no pad knock-back.
The best thing is, I am using the StopTech Street Sport pads
, which work on the street just as well, so no pad change at all!
Excellent performance, complete bolt-on plug and play kit, thousands less than the competition...
I would highly recommend this kit to all track enthusiasts.