Putting a supercharger on my 3800

You will need everything from a donor car. The supercharger with all the accessory brackets and pulleys etc., the fuel system including the two stage fuel pump, all the electronics to control fuel supply boos readings etc., etc. The heavy duty transmission, and of course some bottom end work to the engine itself to properly handle the boost. Oh, and a ton of time, and several tons of money. Or you could just buy a GTP already done by the factory and start driving tomorrow.

Has same trans I’m sure you could just slap the supercharger on there and plug the supercharged Grand Prix pcm in and hit the gas peddle three times and turn the key and it will start but

If only it were that simple, but its not. Anyway the post is 5 months old so he's probably got it figured out by now.