This polished aluminum master cylinder is the answer for Mustang owners with special brake needs. Lack of space because of a big motor, lack of vacuum caused by big cams, blown or supercharged engines, or are you just looking for a superior looking unit that does not hang out so far from the firewall? This unit is a unique self-contained booster that is not dependent on engine vacuum or a booster steering pump, yet is capable of generating up to 2500 lbs of line pressure. It features a larger bore than most cylinders so it can handle single or multi-piston calipers, but still gives you a solid pedal.