H or X CROSSOVER?

4spdragtop said
Are there any downsides? Either H or X? Accessibility?

What cpearce said. Pulling the transmission is easier with true duals. And H pipe can cause some interference while the X is dead in the way.

There is that exhaust note sound change which is mostly heard different under a heavy throttle & wise open.

After that, the power difference in most cases is small and you will not know it.