I've done it before with a wrench and socket. Only way to check is to check.

lol doubtful, but ill bite

i can say safely nothing to the exhaust side was messed with, not too sure about the intake side although it was a pita to get off when i had my short rams installed there

I used the metal gaskets and put a thin coat of the copper stuff on both sides of the gasket before installation. Helps it stick in place when lining up the bolt holes anyways, and hasn't leaked :)

i did this when i was doing the valve cover gasket on my eclipse, probably one of the best uses for RTV out there

I bought a set of gtm resonated tp's. There was no header to to gasket supplied. Gtm said to reuse the stock crush ring. I purchased 2 brand new crush rings for the tp's and discovered that the rings do not fit on male part of the tp flange. I've been tossing up whether to just use rtv copper. Other ideas have been to cut the new crush rings and stretch them around the male part of the tp flange. Then use rtv copper in the gap area. Any thoughts?