Schumacher header exhaust coating

Just a couple of thoughts, yes I would have mine coated by a professional. With that said, Schumackers headers have a high amount of weld beads around the exhaust flanges which block flow. If I was to do Schumackers again (which I would, they are great headers IMO), I would buy them bare, spend some time porting them (they are thick) and then send them to a coater (both inside and out). BB A bodys (RB's specifically) are notorious for fighting heat issue's, this will help and provide power, look cool and have ease of use for servicing.

My 2 cents