i thought the rules said only one opening for brake ducts or is it just 3 different hoses from one source. right now it does have brake ducts that blow right on the center of the vented 10.5 in rotor. ive tryed hawk blue and blacks found that temps go to high caliper housing temps around 500* and rotor temps over 1000* which is where my temp gun stops after a cool down lap. the backing plates are typically metled after 2 hard sessions, granted i have not done much testing beyond that but when the rotor is part of the front hub, i just get tired of getting greasy, and the Z cars that run ITS dont weigh 3300lbs so if you need all that cooling to keep cool there's not much hope for my 5.0 running ITR