AEM X-Series UEGO Wideband Sensor and Gauge

3 Reviews

The AEM X Series consistently outperforms all other offerings in back to back testing for accuracy and response time.


26 in stock

33 users have this item in wishlist

The AEM X-Series Wideand Sensor and Gauge boasts new patented digital technology, making it the fastest responding wideband controller on the market. The clear digital signal gives precise feedback to ECUs, ensuring that your engine receives the amount of fuel that your tuner intended. The AEM X-Series now allows free-air calibration to keep readings accurate as the included Bosch LSU 4.9 ages.

Additional face plates are available to customise the gauge to match the interior of your Mazda MX-5.

Read about the benefits of faster response times of this wideband oxygen sensor, the aem X series is our choice for Widebands for the MX5 –


  • X-Series Wideband Controller Gauge
  • Bosch LSU 4.9 Sensor
  • Wiring Harnesses
  • Black Bezel
  • Black AFR/Lambda Faceplate
  • O2 Sensor Bung
Weight 0.660 kg
Dimensions 13.5 × 13.5 × 13.5 cm

AEM Electronics

3 reviews for AEM X-Series UEGO Wideband Sensor and Gauge

  1. Tim W

    Fastest AFR sensor on the market according to independent testing. I wanted something better than the Spartan2 i had been running up until this point, so this was a logical choice.

    Simple installation, supports normal 0-5v wideband output, but also supports AEMnet/CANbus for direct digital connection to an MS3 ecu (which is what i use), so ideal for improved resolution down the line.

  2. Richard birchall (verified owner)

    In my opinion it is much quicker than the innovate equivalent which I used to have. Good sensor and gauge all round.

  3. joanddavebrown (verified owner)

    Ordered from these guys and it was delivered within 48 hours. Superb product and if you are running an ME221 then it has got to be the obvious choice.

Add a review
You have to agree to the comment policy.

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Make Model Year

We Can Install This For You

Alongside part sales, we also operate a workshop service to install and configure all the products we offer online.

For the past decade, we’ve been servicing, modifying and boosting our own MX-5s. What started as three guys in a shed has grown into a workshop full to the brim of MX-5 knowledge and passion, where no project is too big or service job too small.

If you’d like to book something in or have a chat about your build, give us a call on +44 (0) 203 795 0515 or send us an email at [email protected]