Hi All, I’m new to group. Currently I am having to pull the engine out of my Firebird 400 to replace the main rear seal.

I was thinking of upgrading my damaged exhaust manifolds: cracked, missing part, and probably warped since I can detect a leak after replacing gaskets. I found a guy on Instagram that sell Pontiac parts and I was thinking about buying a used pair of non matching ram air manifolds for 600 dollars with shipping from Tennessee to California.

I saw on this thread that there is a company that sells reproductions exhaust manifold, I only see the long branch manifold for 67-69 Firebirds, are these are only option ? Thank you ????????