Well the asses I got my car from just screwed the plates to the damn bumper, no threaded guides or anything, but one of my friends said that If I wanted a cheap way to hide them he would use some of that wood filler or rubberized caulk and fill them in, let it set and just paint them with touch up paint. I got to admit it looks pretty good, he did his caddy like that and you cant tell they were there unless you get right up on it.
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