Hey Rod:
Not sure that i'm following with "soft none sticking material". On the contrary, ceramic is generally on the middle / upper end of the hardness scale. I think like 4H + ish. As for it "sticking", if the coating is applied "properly" it will have a nearly metallurgical bond with the substrate. Meaning you can whack the headers with a ball peen hammer and you'll bend the metal before the coating with de-laminate.
Now if your headers were NOT prepped "properly" or if the ceramic was applied too heavy you'll see the opposite. Just bumping the header the wrong way could cause a chip, crack or delamination. None of this has very much to do with scratching though.
Its hard to really make out any detail in your pics but it looks like you have fairly large scuffs. Keep in mind that ceramic is tough, but its not kyptonite. I tell guys to treat their coated parts with care as if you were handling any painted parts on the car. I also recommend installing them with protective garbage bags / sheets etc to avoid greasy / grimy hands as well as bumps / scratches.
That said, the best way to remedy what you have there is with some aluminum polish. You want something NON abrasive. I prefer Flitz but any will do. Rub it in and polish it off like any other aluminum part. Don't get crazy with any wheels or unnecessary pressure as the aluminum skin is fairly thin. If you've dug past the shiny aluminum skin to the grayish insulating coat, there isn't much you can do. I suspect polishing everything you have there will make it much less noticable.
