I used Slip Plate graphite coating on my Chevelle manifolds years ago and they still look great. You have to clean the manifolds well with muriatic acid before you coat them. Touch up after they on the car is easy also. If needed just brush touch more Slip Plate on it blends in.
I also have another set I had ceramic coated and then painted with Eastwood manifold grey that have held up well over the years also.
Rich
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"This is Sheriff Buford T. Justice, I'm in pursuit of a black Trans Am, he is all mine so stay out of the way"
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