Autometer Ultra-Lite 66.7mm Full Sweep Elec 30 IN Hg/30 PSI Vacuum/Boost w/ Peak Memory & Warning 4477

AutoMeter Gauges 4477 Keeping track of the vacuum and boost on your forced induction application is critical for extracting the most power safely while keeping your engine in the powerband. AutoMeter?s Digital Stepper Motor Boost/Vacuum Gauges provide the most accurate eadings available, unparalleled response time and smooth needle movement. Taking advantage of AutoMeter?s advanced circuitry, these gauges automatically calibrate on every startup to compensate for altitude, barometric pressure and other atmospheric conditions. Includes an advanced MAP sensor and wiring harness for ease of installation. Designed for gasoline engines, a boost only version is also available for diesel or extreme boost applications. GAUGE, VAC/BOOST, 2 5/8", 30INHG-30PSI, STEPPER MOTOR W/PEAK & WARN, ULTRA-LITE Traditional incandescent lighting illuminates around the perimeter of the dial 2-5/8" BOOST-VAC, 30