I have mentioned a few times before but may as well add one more time. EBC pads tend to make a zzzhh zzzhh sound until you use the brake and then it goes away fro a while but slowly returns. The stock Honda pads do not. With some experimentation it was determined that the EBC pad grooves are different from stock Honda pads and that is the reason. Most people say they get used to it but it bugged me so I went back to Honda pads.