heat wrap is no good, that's why you ceramic coat it. the wrap will trap moisture (leading to rust/rotting) as well as keep heat within the metal of the header. the coating reflects the heat - helping the header from fatiguing.
SD - that blitz was sweet too.
woody - thanks, but being that I have to deal with the visual smog nazis, unless i wanted to swap stuff, I'll have to pass. The smog shop I've gone to the last few times is cool -there are certain things they let 'slide' as long as its done clean. If that wasn't an issue. I'm pretty sure I would have jumped on that blitz that SD had for sale a little while back.
I say be unique and use it. upsidedown mani's FTW