Wideband Air Fuel Ratio Gauge Kit 30-4110, 52mm O2 Sensor Controller For AFR
※The AFR gauge monitoring tool provides accurate data that is essential to a safe and powerful tune. ※Gauge Display/0-5V Output Gasoline values from 10:1 to 20:1 AFR. ※0-5V Output E85 values from 6.6 to 13.2:1 AFR.