Exhaust Manifolds

I know no one here personally. I also want opinions on something, I know little about, before jumping in with both feet. I also appreciate more than one opinion, so I can then choose the way I want to proceed. I also have an old saying I live by, "show me don't tell me" and another one, "if it is not broken, don't fix it". As some have stated here, get your project in hand and then our comments could be meaningful. Sometimes people try to fix a problem, that is not even there.