if im not gonna be boosting past 15 psi should i install this or just use a mbc..
also i have a turbonetics wastegate do i use all three of the solenoid ports

 

k

 

That's up to you. (I know that sounds obvious). But you need to look at whether or not you want the features of the GReddy unit to help with other options that a MBC doesn't do. The profec is a true Boost CONTROLLER, meaning that you can change the gain and response characteristics of the turbocharger you're using via the wastegate, through the cabin of the car. simply stating PSI has nothing to do with your NEEDS. The MBC do not have a gain feature (even the AEM Solenoid) but is more of simply a ball-spring boost INCREASING unit, not a true controller.. If you feel that it would be better for your needs to use the Profec, use it.. Otherwise you don't have to.

Cost factor has nothing to do with his choice, guys, so stick to his question.

 

okay thanks alot that summed it up for me i got it for about 90 bucks new so i think ill use it