Exhaust fit question

So, doing mods to the engine (3.4L v6 Camaro) by adding a better camshaft and headers. She's already has the top end modified. Will be installing a Weber TBI conversion soon.

My question is: would a later model (late 80s early 90s) cat-back exhaust work on my 85?

Looking under a friend's jeep, the bends look almost exactly alike with a slight variation in the cat and muffler.

Thanks for the help and info.