AEM Replacement Sensor

  • Sale
  • $80

This kit includes a Bosch 4.2 LSU sensor for use with any AEM Wideband UEGO Controller or Gauge.

The Bosch 4.2LSU sensor, which gives AEM Wideband controllers their speed and accuracy, is laboratory calibrated at the factory and never requires free air calibration when used with an AEM controller!


  • No free air calibration required - ever
  • Accurate to 0.1 AFR