Weighing in around 7lbs, save a little more than 3lbs per corner of rotating mass. Identical sized light weight two piece rotor and hat replace the heavy cast parts. CAD designed and FEA tested, our hats weigh just under 1lb and are designed with cooling reliefs for great thermal dissipation. Custom American gray iron rotors are mated for the ultimate in performance.
Note- this setup will require race style backing plates or OE style to be clearance for the radius of the hat. This can be done easily with a file or grinder.