I will be picking up a 2001-2004 mustang V6 automatic. I am looking at improving performance without having to run premium gas as part of the reason im going V6 is to save on gas money. Intake and exaust mods should be fine. Chip I believe would be out the door. Pullies would be fine. What about a supercharger? NOS isnt the kind of power im going for.... Will I have to aim more at more hardcore engine mods like heads and cam? Any help would be great.