If you have to ask, don't even try.
A supercharger or Turbo install on these cars is very expensive >$5k and complex.
A Nitrous Oxide setup would be significantly cheaper. A dry 50 shot could be under $1500 for install, however you would need to refill the tank every so often depending on how often you go WOT.
Think of it this way:
Is it really worth all of that money and time/headaches to go a half second faster to 60 mph? Will you enjoy the little speed more than worrying that something will go wrong?
There is a reason we don't have many power modified 325s on this forum.