800 miles when I changed mine out and they all still looked near new..in fact, the rears miced-out only .010 less then the new EBCs. Make sure of three things:
1. That the calipers move freely on the slides.
2. That the master's plunger is returning completely..ie there is some free play on the rod.
3. As I see one went metal to metal, replace any bad rotors before installing new pads on bad ones.