I DIY mine after the bodyshop did a shitty job (it chipped too easily, even on a second repaint attempt by them). Buy SEM TRIM BLACK it comes in an aerosol can. I took the upper trims off, sanded the chrome down hard for a few hours and then put 3 coats of the SEM Trim Black. It's been a month through some sandblasting roads and I have zero chips on the trim