Aluminum Intake Corrosion

Got one of them sexy aluminum intake manifolds.

Fast forward one year. That funky white al corrosion is showing up.

Is there something to coat the aluminum manifold to keep it looking shiny and new?
 
Eastwood has a clear spray product. I can't remember the name, but it's advertised as being "hi-temp". It should work???

Just looked - diamond clear hi-temp, good to 600*
 
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