when you use some aftermaket pad, the caliper and rotor will get more damage.
When I use all stock brake parts(stock calipers,stock rotor, stock pads) on track, the pads are overheat and i can't stop the car. but after a while, they still OK to use.
when I have endless pads which is CCR (150C'-800C') with stock rotor and stock calipers on track. I killed the rotor in first 15 mins.
After I change to APP rotor, I have no problem with brake. maybe I'm not drive that hard.
what I mean is, if use stock pad the rotors and calipers will be fine.
but with high temp pads, you may have some problem of calipers and rotors.