My brakes drag when the car heats up

There's not much else to change, and now you're getting to the really expensive parts. Don't replace anything else until you find the problem. I'd take it to a brake shop for an evaluation. It may simply be a case of having the system bled properly. That is not always as simple as it once was because the antilock brake system is involved. Brake shops are equipped to do it properly. A few dollars spent on professional help at this point is likely all that's needed.