I dont need it that thick, it is just comes that way as a prehard material. I used it because I didnt have to mill the surface, I just had it cut to shape and install. I have them on my charger now, using 2006 crown vic rotors and dual piston calipers. The calipers were 50 each, rotors 90, the adapters were about 200 with travel and cutting, pads are what you want...I spent 40 for the napa gold ones. That is about as cheap of a modern dual piston disc brake setup as you can get. Tim