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AEM’s legendary Digital Wideband O2 AFR UEGO Gauge is a wideband UEGO air/fuel ratio controller (AFR) and gauge in one. It unites accuracy, speed and control with an easy to read, digital LED display and sweeping LED “needle” that changes colors as AFR changes from rich to lean.
The AEM 30-4110 wideband gauge is a replacement for the well renowned AEM UEGO 30-4100. While cosmetically identical the new AEM 30-4110 wideband controller gauge utilizes a Bosch 4.9 LSU oxygen sensor for enhanced accuracy and require no free air calibration - ever!
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