my 98 grand prix is a 3.1L SE because the GT and GTP are 3.8 motors there is hardly any aftermarket spport for my car, or so i thought!
found a place called RSM Racing in the states and they sell a Vortech supercharger kit for my car
only $6000... shouldnt take me longer than a year to save up that much, then ill be running 280hp!!!
GTP's are fast and they come with 240hp, and im not gonna stop after the charger is put in!