The black coating goes away as you use it. You can even brake clean them off if you like before hand. I feel like there's been a slightly better initial bite than oem. I actually meant to order the yellow or green pads, but got these on accident. Despite that, I'm pretty satisfied with it since my main objective was to get something with a better bite and to replace the rotors as it had corrosion on it that wouldn't go away after 2000 miles.
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