For me, the stock brakes, even with ducting, with stock suspension and 225/255 TW200 tires was adequate (barely) but I didn't feel I could justify the BBK given the additional cost of upgrading street and track wheels. But once I upgraded the suspension and went square, even with TW200 tires I was beyond their thermal limits at HPDEs. This was with Hawk DTC-60 pads and Centric rotors.
Same. Getting fade with ducting all around now that I’m running 255 re-71r all around. The ducting helped with pad life and fade a noticeable amount just not quite as much as I hoped.
