Just had mine fitted today. Waste of time fitting the rears, same size rotor, and same caliper, except blue. Although, the rotors supplied were slotted, so should help. The blue caliper has gotta be worth an extra 5rwkw I reckon. Have only done a few ks, but definately better. Mechanic who fitted them said the front rotors are DBA of some description. Worth a few bucks on there own. Mine is the ute, so not sure if car rears any different. Worthwhile upgrade IMHO. :sungum: