Does installing a box such as the edge or big hoss, or installing injectors increase the boost pressure. Do I need anything like a boost fooler when if I install one or the other.

 

Yes.

 

most boxes like the edge,van aaken and others have a boost fooler built in,so no need for a separate fooler,and most kits come with the boost elbow to help you gain more boost.or you can plug it off like i did.boost by itself wont give you anymore power though you need the fuel to go with it.