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Originally Posted by Steggl
Yeah, great, reached already out to them to clarify some questions regarding required and fitting gaskets but haven't heard from them since Monday.
Would love to see more pics of the covers in gold, as this is the color I want to order.
BTW: "better coil grounding" compared to what? The original Magnesium covers or the painted aftermarket version? Does anyone know if EPM masks these grounding areas before anodizing? I would assume yes but in the pictures the covers look completely colored.
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Most aftermarket valve covers that are powder coated tend to cause grounding issues because the coating acts as an insulator. (you actually will have to sand it down to the metal again)
You'd think anodizing wouldn't have the same problem, but it actually does. The anodized layer is aluminum oxide, which is also an electrical insulator.
If EPM is masking the factory grounding points before anodizing, then it shouldn't be an issue. I don't know if they do, though.
Personally, I'd buy them raw and mask off the grounding surfaces before having them coated or anodized if you're set on a color. That way you know the grounds have a clean metal-to-metal contact instead of relying on the coating being thin enough to conduct.