TurboXS BCQSBC Quad Stage Boost Controller Reviewhttp://tinyurl.com/k4vw654 TurboXS BCQSBC Quad Stage Boost Controller Quad Stage Boost ControllerWhile the BC-QSBC does come with wiring harness for all three solenoids, it does not come with any switching mechanism. It is left to the user to determine how to switch on each solenoid on, whether by using a timer, or a micro-switch off the gearbox, etc.
