I have the 350Z front with RP bracket in the rear with Powerstop slotted rotors. At the last track day I measured my calipers at 270 degrees and rotors ~560 F in front. My buddy with his 370Z and AP racing calipers with 2 piece rotors was half that in temps. I was actually pretty amazed at the difference. Speeds were 90 mph tops with short hard braking, but nothing extreme.