16 thou and change. Inside pad on one caliper wore twice as much as the out so replacement is a little premature. Just a little sticky piston action, no big deal. But oe pads retail for about $45, same as a lot of good aftermarket pads, and more than many others that are available, and I haven't seen anything written on what guys may be favoring, other than the Spieglers on the GB a while back. I want good action, but I don't want to be wasting the rotors in one set either. If there is something better than oe, I'd like to know.