So I've seen some things around here about people running x pipes instead of y pipes on their g35s. I have an 04 g35x can I do that as well with mine? I've got a coupe mid pipe and a custom borla s type axleback if that matters. Would it be possible to run an x or an h pipe with mine and if so what would I need and how would I do it?

No, the sedan exhausts run one outlet pipe so the H or X wouldn't work because they have 2 outlets.

So as not to start a new thread.

There isn't a place I could install a magnaflow resonated x pipe in and then have it run back into a single exhaust?