HAWK HB628F.651: Scion xB 05-06, High Performance Street Front Brake Pads by HAWK. FMSI: D1249. This is a set of replacement front brake pads designed for an aggressive level of street driving with more repetitive, heavy braking. While these pads are made from Ferro-Carbon that was developed for racetrack applications, their formulation has been blended to provide a more progressive feel for the street. They provide 20 to 40% more braking power without causing higher wear on rotors the way racetrack formulated pads do. Designed to the precise tolerances of factory parts for proper fit and operation, these pads are backed by a limited lifetime warranty.