Felpro 1415's...which side to what?

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Nope...no inst. either? I read this in a similar thread, but he wasn't too sure...

"instructions say aluminum side against the manifold...so I guess against my header not the head" :shrug:
 
I didn't write that!! :bs:

I know that a header and manifold are the same!! DUH! :damnit:

Is this info right???? Does the aluminum side go against the header, like he says or to my knowledge it SHOULD go against the head... what do you think? :owned: