AEM’s 30-0306 X-Series -30in/Hg~35PSI / -1~2.5BAR Digital Boost Display gauge combines incredible looks, increased readability and a multitude of new, easy-to-use features! It is a must for users who want highly accurate boost pressure readouts up to 35 PSI or 2.5 BAR in their high-performance vehicle. NOTE: The 30-0306 comes with a black bezel and reversible black PSI/BAR boost pressure faceplate. You will need to purchase the optional 30-0306-ACC accessory kit to get the silver bezel and reversible white standard/metric boost pressure faceplate. Each faceplate is double-sided with standard PSI on one side and metric BAR on the other. The calibration for standard or metric display is easily performed using the buttons on the face of the gauge.
All warranty questions, claims or otherwise should be directed toward the manufacturer