I did a rush job on mine when I had my valve cover gaskets done.
Did a thorough scrub with dish soap and a scouring pad to get all the old flaking finish off, air dried it, then painted it with VHT header paint.
It has held up surprisingly well so far!
It's not as tough as the old finish or powdercoat though. It got dinged a bit from install and minor impacts. But it looks like it wont be flaking off from heat.
Next chance I have I will powdercoat probably.
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04 X5 3.0i auto
03 X5 4.6is
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