I already have a actuator put on my car that helped my boost a lot. If I got this would it help my boost even more? And whats the maximum and minimum that I could set it at?

 

on a stock car you really cant push too much boost i may be wrong and some one correct me if i am but i dont think a boost controller alone will help much. you need supporting mods like fuel pump, fuel rail, injectors, ect.

 

if you plan on running over 15 psi daily you will need a bigger fuel pump the walbro 255 lph is the most common you don't need to run bigger injectors or fuel rail unless your putting in a bigger turbo and keep in mind that your stock pcm will throw a code if you go over 16 psi.