naw the metal gasket that goes between the header and the engine
but im not puttin it in there to much of a pain in my balls
anyways i bent the pipe a little ,had it on and thought i should put the gasket in and took it off , now it wont go in again
very bad karma is headeing shafs way from me right now
so pissed i cant get it to work ,now i got a 200 dollar paper wieght