AEM 30-4350 Tru-Boost Controller Gauge Complete system includes harness, boost hose, on-board 29 psig pressure sensor (external 75 psia optional), boost solenoid, gauge display and all necessary fittings Two user selectable boost settings with peak boost memory User selectable Overboost alarm includes two timed shutdown levels at 10% and 20% Overboost No external interface required for programming! User configurable gauge includes 24 scalable LEDs, and interchangeable bezel, pin guide and faceplate to customize look of display