That is the aluminum after media blasting. I’m not sure there’s a coating that will replicate it.I was not going to ask, but ok I will . What paint do you use that replicates that Toyota/Denso look on the outer case?
I understand if it's something you don't want to share. I am looking to coat things like intake manifolds, resistors, injector controller etc, but nothing I have tried (2k or out of a can) seems to match that nice cast dark silver look.