upgraded brake caliper/rotor setup and if you come back saying it not a large difference you'd be lying to yourself. In the world of racing 5-10 feet shorter is the difference between making a corner safely and eating a wall or car. Upgraded braking setups can net you that considerably more.
1992 Nissan Skyline GT-R Gunmetal Grey - Long Live the Z and Godzirra! - "Love cars. Love people. Love life." - Mr. K.