Great product! This is the second car I've fitted with Power Stop brakes and slotted and perforated rotors. The great thing about this set is that it comes with new accessories like springs and clips. I've only had them on my 04 Tundra 4x4 for a month with no problems. I followed the interruption of proceedings as best I could. Breaking-in is all about warming up the brakes so they seat properly.