Are you kidding me? So I orders a Powerstop rotor/pad kit of amazon (the z23 kit). I opened it up and one of the rotors just wasn't machined correctly... I honestly have no clue how they got this past their QA: So I called and had them send me a replacement rotor. I had to wait 7 days for the replacement to get here, and carrying the box I noticed it seemed too light... Sure enough they sent me the wrong rotor!! I should have had these darn brakes broken in by now!! Now I have to wait another week... Such BS.