Re: Cheap DIY exhaust gasket.
That will work better than anything that is gasket paper fo sho.
I found out after trying one of SBP exhaust kits it came with a aluminum block spacer for a gasket. The way I figure it it expands and contacts with the heat maintaining a seal. Worked better than what I used before [Gasket paper]. Suspect copper is good as well. I am leaning to the aluminum though.
Still gotta have a since of humor.