What is the point of putting a performance intake on a M30 motor? You will
still have only have 2 valves per cylinder, that weak camshaft and valve train
and too many other issues to list to ever allow this motor to be able to get
out of it's own way.
If you want any performance, you need to start with at least an M50 motor.
This is a 6 cylinder car that still has an ingition cap & rotor. Your options
are severely limited.