I have been powder coating off and on for myself and other small projects for about 4 years, and have great results. The only thing that I am disappointed in is the semi gloss clear on my intake manifold from a few years ago. It went on fine and looked great BUT after a few years of use, it started to discolor from fuel, grime etc… The coating is holding up fine but it’s just getting discolored, a small drip of fuel will stain it a light golden tan. Now I have another intake to do, and I like this look, but I want something that will not discolor. I used eastwoods semi gloss clear on my old intake. Does anyone know what will hold up on an intake manifold.