Keep in mind that tires are always the limiting factor in stopping distance. The stickier the tire, the faster you will stop. Brake upgrades only improve the "feel" of the brakes, durability, and fade resistance. Big $$ can be better spent on tires and wheels if you really want to stop quicker. For little money, high temp fluid, Hi-Perf pads, and ss lines go along way toward eliminating fade and providing a firm pedal.