Instructions for the 30-4100 will still be available in the Instructions tab after this change. Accurate AFR data is critical when tuning an engine.
AEM Digital Wideband UEGO Gauge 30-4110
AEM Digital Wideband UEGO Gauge
AEM 30-4110 Digital Wideband UEGO AFR Gauge with Sensor
New GENUINE AEM Digital Wideband AFR UEGO Controller w/ 4.9 LSU Sensor 30-4110
AEM 30-4110NS Digital Wideband UEGO Gauge w/o Sensor