Greddy''s Profec B SPEC II boost controller is based on the very popular B-Spec. The B-SPEC 2''s basic function is to increase boost as easy as the original boost controller, but with an added built in boost pressure display and optional features like real-time, peak, or last boost display. This unit can read measurements in kPA or PSI. There are also optional warning and boost limiter functions that can be programmed to offer better control and monitoring. Two preset values can be stored and are executed by a larger capacity inline solenoid valve. This unit does not require extensive programming and is ideal for low to high boost levels for single or twin turbo vehicles using actuators or wastegates.