I have lots of good things to say about Stoptech BBK's. Truly bolt on, easy as pie. You'll need a 5mm spacer on the front with the stock rims. The pad selection for their calipers is huge. Everyone makes pads for them it seems. I'll bet your brake fade is the pads surpassing their maximum temperature range. If I were you, I'd buy myself some real track pads. Swap them in for the track and put the streets back in afterwards.
I'm facing problems boiling the fluid with my Stoptechs. R-Compound tires really up the braking G forces and heat production. I've had to replace the rotors once and rebuild the calipers. Parts aren't cheap. BTW, if you haven't already done it, repack the front wheel bearings with the best synthetic grease you can find. I used amsoil. If I trade up to the Trophy kit, I'll keep you in mind for my take offs. Unlikely to happen, but you never know.

Les