Innovate Motorsports SCG-1 Solenoid Boost Controller & Wideband O2 Gauge Kit, All-In-One - 3882KEY FEATURES 100 pct. Digital Wideband Air Fuel Ratio Technology 4 BAR MAP Sensor; Pressure Range 29 inHG to 43. 5 PSI; 1 to 3BAR All In One; Intelligent Boost Control Wideband AFR Gauge Controller and Display House In 52mm [2 1 16 in.] Dia. Gauge Body Incl. High Resolution Solenoid Interchangeable Bezels; Black and Silver Included Interchangeable Faceplates; Black and White Included No PC Required For Configuration OLED User Configurable Display;