Based on the very popular B-Spec., the all new PRofec B-Spec. II, electronic boost controller is equipped with new easy-to-use features at an economical price. In addition to the two presets, remote switch option and wastegate response adjustments, the B-Spec. II also includes: built-in back-lit LCD, which can display real-time, peak, or last boost (in either kPa or PSI), an optional warning and boost limiter functions and a larger capacity inline solenoid valve for higher boost levels.