I'm not sure I'm following your question - the V9 intake is on the side and the exhaust points to the back as fitted to a VR engine. Turning the housing does not change where the intake is; only the exhaust moves.
The intake pipe on mine (Corrado) has a 90 degree bend right next to the blower's intake, the intake pipe then point down and is stuck into the area behind the front bumper. I don't see an easy way to change this or I would have.
The exhaust points aft. Adjusting the belt tension makes the exhaust point up or down a little which mis-aligns the boost pipe. That's why the charger's housing can be rotated - to get the exhaust lined up with the boost pipe.