i think the stock rotors are pretty good, i upgraded the front 4piston brakes with some good sport pads, they wear a little fast but bite great...i dont remeber the brand ebc or something like that. but i stuck with oem spec pads on the rear brakes, from what ive heard the rear brakes dont do all that much work anyways so there is not much advantage in buying expensive pads for the rears. my experience anyways.

 

ebc is crap. they crack far to easily, (read: 1 lap of VIR.) I reccomend carbotech, potorfield, or Performance friction