Most possible options to boost the performance of my Chevy Impala?

I have a 2007 Chevy Impala LS 3.5L V6. I would like to know if there is a chance where I can make the car run better than a SS or the Charger R/T even though I heard it will take a lot to place a Hemi inside a Chevy.|||bigger exhaust pipe, turbo. supercharger. just spend money.