Help with suping up a 2.0 jetta automatic

I have a 2000 jetta 2.0 gl automatic and I would like to sup it up and add a little more power or speed without doing an engine swap. I know I can change out the air intake but idk what else I can do. Please help out with suggestions thanks

Supercharge it for about $3000 and add a performance catback for another $600. These engines are not designed for supping up cheap. The 1.8L turbo is the way to go when buying these cars.
Franco

lighter!! carbon fiber hood and trunk. They look awesome I wish i could afford them right now! Racing brakes and rotors make the car stop faster and look sweet