Vibrant Performance manual boost controller is CNC machined and entirely made of 6061 billet aluminum and premium grade brass. It has proven to be one of the easiest and most cost effective ways to squeeze more horsepower and torque from your turbocharged vehicle. Vibrant Performance manual boost controller is lightweight, compact and features a unique integrated dial that allows you to precisely set boost. It eliminates the risk of over boosting that occurs with many other manual boost controllers.