I followed Bills thread, fitted the RS big blacks, 993 rears and 993 m/c and booster. He suggested that I remove the bias valve, that's what I did. The new brakes along with all new suspension bushings (Elephant Racing RS spec), OE strut and shock mounts, drop links, sway bar bushings, H&R greens, Bilsteins and a fresh set of Conti DW tires...sublime. I contacted Bill several times, he was really helpful. And yes, fitting the m/c and 993 booster and brake line was a chore.