???Any Ideas???

What kind of parts? Be more specific. Also there will probably be very few performance parts available for a Stratus.

you mentioned "exact fit " have you had problems with parts in the past ? I guess you get what you pay for .

I'm looking for anything that'll boost her as much HP as possible without putting too much strain on the motor... Exhaust, intake, anything that'll add horses without spending an entire arm and leg...

Intake and exhaust systems will add a handful of HP. If you want performance buy a performance car. HP costs money and there is no way around that fact. Check carid.com but there is little for your car.