These pads are for my 2003 Silverado Extended Cab 4X4. At first they were so loud it felt like I was trying to stop with gravel instead of regular pads. It was a resistor in the coating that did its job of removing the glaze from the existing rotors. I bought new EBC USR series sport rotors to work with these pads. The noise lasted about the first 20 miles, and each mile is quieter than the last. I did the EBC break-in procedure to brake with pads for 400 miles. At over 3,000 miles with EBC…