I even told Brothers I wanted the rotors they sell drilled and slotted and they just said, no problem and took care of it. The corvette MC and the prop valve, brackets, everything just bolt right up. Since my plan is to use all stainless lines, I have to go to a bit more trouble, but I was very pleased with the way it was all handled. I am sure there are other vendors who are just as good, just sayin.