Designed as a combination boost-controller, data display/logger and e-manage programmer, GReddy boost controllers provide superior boost response, increased boost, Warning meter functions, 3channel data-logging, and access to all the programming features provided with the latest e-manage support tool. With both an auto and manual setting for both external and actuator style wastegates the PRofec can alter its compact, high capacity solenoid valve via various RPM ranges if need be. The large LCD screen, with green electro-illuminesant backlighting is easy to see.