Would 3.8 coupe headers fit 3.8 sedan motor? Same GaDA engine?

[RemyBluePearl]

I’ve always been curious about this and why I haven’t seen it down but I talked to one of my mechanic friends back in NY and he said the gaskets were the same size. I’m curious to see if anyone has any insight if it may or may not work because of cleareance or what not. Any suggestions?

 

[Genesis Device]

My thinking is no. Reason being although the engines are the same - explaining why the flanges on the stock exhaust manifolds are identical - the runs down to the remaining/lower exhaust assembly are likely different due to them being on completely different platforms. I may be wrong - and you never know - but I suspect this is likely the case.