Quote Originally Posted by stealthee View Post
The only GT's that were factory supercharged were the 06 and 07 GT's because Pontiac dropped the GTP nomenclature from the Grand Prix line up. If your car is a 04 GT and is supercharged, someone swapped it. If you scroll through your DIC there would be a factory "boost gauge" if your car is indeed factory supercharged.

As it stands, its basically pointless to have a boost gauge in a supercharged application anyway.
Its a gt its supercharged its not a gtp. there arent heated seats or a heads up display or the 5 button dic no boost gauge and nothing has been swapped came like this from the factory so im assuming its kinda rare