X-Series EGT Gauge Kit 0-1800F/0-1000C Black Bezel and Black Faceplate AEM ElectronicsAEM's 30 0303 X Series Digital Voltmeter gauge combines incredible looks, increased readability and a multitude of new, easy to use features! It is a must for users who want highly a accurate voltage readout in their high performance vehicle. Easer to read Visual improvements include a bright center LED display that is 87 percent larger than our original digital gauges and provides better readability. A sweeping green LED needle lines the edge of the