you can only change the inlet manifold on a GZE by ditching the supercharger! it bolts on to the back of the manifold. its that dodgy little shape to make room for the charger.
and they arent small bends theyre very tight. its a really dodgy looking setup but it seems to work well enuf
Unfortunately, without dropping the supercharger down (which presents space issues in some cars), the only way to get a decent ZE manifold is to build one and that's really tricky...