Strange, but one of my rear calipers broke open last year. The guys at the shop said they hadn't seen that happen before on a honda, but w/e. Either way I went to this place called autoparts international, I believe it's a local only warehouse thing. But I got the OEM piece in exchange for my busted one plus 90 bucks. Then put it on myself. It's quite easy, just take your time and bleed the brakes afterward. Stupid shop wanted to charge me close to 200 too. So it can be the caliper itself, just not likely I guess.