Bosch LSU 4.9 5-wire wide-band O2 sensor. This is a replacement sensor for the AEM 4.9 UEGO.
These sensors have a laser-etched, calibrated resistor in the sensor's connector body. This resistor is specifically created for the exact sensor that it is attached to. Modifying this will invalidate the sensor's output. The wideband sensor is laboratory-calibrated at the Bosch factory, accurate to 0.1 AFR and never requires free-air calibration when used with an AEM wideband AFR controller.
- Highly accurate down to 0.1 Air Fuel Ratio
- Wont ever require free air calibration with used with an AEM controller & connector plug
- Designed specifically for use with AEM 30-4110 Wideband UEGO Controller
- Replacement Sensor ONLY
Direct Replacement Sensor for the 30-4110 Digital Wideband UEGO Gauge