Most of the time if you find a used pair of these calipers they will come with the brackets. If in doubt ask, because in all my searching before my upgrade I never ran across someone selling just the brackets. But the calipers I bought from the parts store were "loaded" meaning they came with the caliper, the mounting bracket, the shims, and brake pads.

A core charge applies to most things that can be rebuilt and used again. When a parts store sells you a caliper, they want your old one in return so they can rebuild it and then turn around and sell it again. So they charge you a fee until they receive the old caliper. Chances are if you are upgrading you won't have a core to return because they want the same item in return. People will tell you that you can probably return your stock calipers and they won't notice but I guess it depends on if you wanna risk it. Hope this stuff helps man, if you have any more questions feel free to ask. jason2gnt@aol.com