This may or may not be a stupid question. I have a 2006 cobalt ss and all I have done is an injen CAI. I'm wanting to tune it but before I want to put on 60# injectors and a 2.9 pulley. Can I throw the pulley and injectors on without doing anything else or do they need supporting mods first?

 

Better off doing it after you got all the mods on. No sense for tuning an intake then adding more mods then tuning again.

 

thats what my plan is but do i need any supporting mods if i upgrade my supercharger pulley?

 

you dont NEED them, however if you do the pulley, injectors and tune now your going to need to retune it once you put some exhaust on it.

myself, id put the money into an exhaust before injectors and a pulley. a nice mid-length header and downpipe, and a 2.5" cat back. it will really help the car breath before you start cranking the boost up.