Brand New Eddy RPM performer intake:How to protect it?

I use either "New Cast" in aluminum or a similar product on used intakes. I wouldnt clear coat any, they do yellow. Not just from heat, but from the chemicals too. On a car that's driven a lot on not stored much, just spraying WD40 on it after it's been bolted up will keep the luster and delay any corrosion. That's what I have done on my plow truck.