unfortunately they were on an NSX when i tried them out. but the braking was unreal. Every time on reached the end of the straights, i could brake so hard that i was come out of my seat. only the seat belt was holding me in. I wish they made a kit for the Z cuz im sure it would be just as good. there was no noticeable fade even after 5 hard laps. incredible. id like to compare them to a Z with the AP Upgrade.
