The Dual Solenoid Boost Controller S(DSBC Spec S) has four programmable boost settings or various levels of boost. This unit features a built-in boost gauge, peak boost display, four different boost settings, boost warning, scramble boost, and a boost limiter safety feature to prevent over-boosting. The DSBC Spec S uses a single solenoid design for boost response, capable of handling boost up to 1.2 bar (17 psi). The DSBC Spec S is 1/4 Din size and is campatible with internal actuators and external waste-gates