Hi, guys quick question. Is there supposed to be a flange gasket between the manifold and pipe flange?

I bought anew manifold for the rh side and didn;t see that there was one on there but believe it was leaking fromt here from the old manifold. WIll the new manifold correct that or should I find a gasket for it. hard to find one listed for it. I'm using mr gasket copper for the manifold to motor.

Before I put this back I was hoping for some insight and whether I'm okay just leaving it.