It won't get you a lot of boost though, just a few PSI.
Also - the resistance of a flywheel (which may be a dual mass or not) would not be nearly as much of a load to a 3.0L V6 as it would to a 1.8L 4-banger.
In any event, like has been said in this thread several times, we're all just pissin into the wind until we can actually DRIVE the car.