Was wondering how hard it is to supercharge my 4.2L F-150. i have looked at many different options, cheap is better for me right now. If you make an improvement like a supercharger then is it an absolute must to get a new chip? any help would be great.

no matter where you go super chargers arent cheap

your right about superchargers not beeing cheap espeacly when the aplication is not popular like (5.0) (4.6) (5.4)

Your going to have to atleast upgrade the injectors if you dont put a chip in.