Pre-Divy Exhaust on Seca II?

[superman22x]

Maybe this has been covered before and I missed it, but would exhaust from the earlier XJ600s, XJ900s, and such fit our bikes? The exhaust gasket part I saw on ebay fits both bikes, so I assume the exhaust bore spacing is the same. I just saw some XJ550/XJ900 4 into 1 exhaust system on ebay that looked decent so I was wondering if it would fit our bikes. From what I have read, FZ600 and FJ600 exhaust should fit. And FZR600 exhaust will not fit because the engine in the FZR is tilted forward more. Just an idea since there aren't many exhaust options for these bikes. I understand there isn't much performance to be gained. But this bike isn't fast in the first place, I'm going for looks and sound mainly.