Yes, they make a hell of alot of diference. Really you should have done them before revo, but hey ho. You get a much harder feel to the pedal, and if you stamp on the pedal, you'll stop on a dime, well maybe not that quick, but quick

You also dont get the abs kicking in as much i found, but just be careful when they are fitted, not to brake hard going around corners, as the back end goes very light, and could switch ends on you, as i have nearly found a few times when i have forgotten to put the ESP back on.