Will a supercharger from another car fit your 2001 ford mustang GT?

Answer 1

Depends on the type of supercharger. Roots or centrifugal.

A roots sits on top of the motor and either bolts on to the intake manifold, or the supercharger has the intake as part of the unit. Unless the roots supercharger is from another 4.6L modular than the answer is probably no. Unless you're a good machinist.

If its a centrifugal type supercharger, which looks more like a turbo off to the side of the motor. Then you can probably buy an installation kit for your car from the manufacturer of the supercharger.

The superchargers from a single model line are all the same. Its just how its mounted to the individual car that varies. Either way if you search around you may be able to find a mounting kit for your application.