SKU: 18971653786

X-Series OBDII Wideband AFR Controller Gauge

Sale price$96.65 Regular price$107.39
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Description

X-Series OBDII Wideband AFR Controller GaugeAEM's X Series OBDII Wideband UEGO AFR Sensor Controller Gauge (PN 30 0334) provides tuners who are using piggyback tuning modules or open source software with the ability to view AFR through the factory CAN bus stream that is output by the factory ECU, and deliver the most accurate, safe and powerful tune. The 30 0334 X Series OBDII Wideband Gauge is validated to work with EFILive, HPTuners and DashDaq software. The X Series Wideband AFR OBDII Gauge

AEM's X-Series OBDII Wideband UEGO AFR Sensor Controller Gauge (PN 30-0334) provides tuners who are using piggyback tuning modules or open source software with the ability to view AFR through the factory CAN-bus stream that is output by the factory ECU, and deliver the most accurate, safe and powerful tune. The 30-0334 X-Series OBDII Wideband Gauge is validated to work with EFILive, HPTuners and DashDaq software.

The X-Series Wideband AFR OBDII Gauge includes an OBDII pass-through connector and Bosch 4.9LSU sensor that can be free-air calibrated or used with the factory resistor calibration. Additional wiring for a 0-5v or RS232 Serial output can be added by the user for outputting to a data logger. This OBDII pass-through capability replaces the traditional AEMnet stream available in the 30-0300 X-Series Wideband AFR Gauge Controller.

X-SERIES WIDEBAND UEGO CONTROLLER FEATURES:

-Patented X-Digital Technology makes it the Fastest Responding Wideband AFR Controller (Patent # 9,575,030)
-OBDII pass-through provides AFR readings through the factory ECU CAN-bus – Ideal for users with piggyback programmers or open source tuning software
-Includes Bosch 4.9LSU wideband UEGO sensor and OBDII pass-through connector
-Use the factory 02 calibration or free-air calibrate using buttons on faceplate
-Compatible with vehicle/system voltages up to 16V
-Optional outputs for 0-5V & RS232 for data logging and feedback control (requires wiring)
-Can display AFR values in hundredths of %
-52mm gauge diameter and slim 0.825” gauge depth
-Gauge cup depth only .200” deep!
-Auto dimming feature
-User configurable display via buttons on the gauge face for changing AFR values, Lambda and O2%, 3- or 4-digit display and OBDII output settings (if necessary)
-Black bezel and black dual faced faceplate included (silver bezel/white gauge option sold separately, PN 30-0300-ACC)
-Locking connectors

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 18971653786

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Willy Bill
New York, US
★★★★★ 5
Great Filter
Size: (Pack of 1)
This fits fine. Just wish it was a little easier to change.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
E
Verified Purchase
em
Chelsea, US
★★★★★ 5
More power, slightly lower (8%) MPG.
Size: (Pack of 1)
Installed on a 2.0 liter Subaru Impreza. I drive up/down the I5 in california 3-4 times a year. For those that don't know there is about a 200 mile flat stretch where everyone runs at 75-85mph. With various filters (FRAM, BOSCH, Subaru OEM), I would consistently get 29.8 mpg. Once I installed the K&N, I could feel the car pulling with a bit more power, but I noticed that I was getting about 27.5 mpg. Totally worth it as the impreza is a little under powered and I don't drive many miles (6k/year) but if you are putting a lot of miles on your car, you may want to have more mpg.
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Reviewed in the United States on May 24, 2026
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Verified Purchase
GregUPerkio
Lowell, US
★★★★★ 5
fits my 2013 chevy suburban 5.3 and appears to be high quality
Size: (Pack of 1)
fits my 2013 suburban perfectly. looks to be a well constructed unit.
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Reviewed in the United States on March 29, 2026
G
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Gahvno
Lake Worth, US
★★★★★ 5
Very good quality comparable to OEM at a much more reasonable price point.
Size: (Pack of 1)
Last December we bought our first new car in 21 years and the first thing I did is stock up on cabin and engine air filters. I've got nothing against dealership OEM parts and pieces but what I do have an issue with is the prices. Luckily, we all have a bit of control over access to OEM quality parts and pieces at significantly more reasonable prices via Amazon. This filter and it's matching cabin filter are excellent in value and take less than 5 minutes to replace. Compare that to paying the hourly rate at your dealer plus the dealership retail price and you'll do what I did and stock up on these two filters. Definitely recommended.
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Reviewed in the United States on September 25, 2025
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Little Oak
Whiting, US
★★★★★ 4
It will fit a 2022 Subaru Outback
Size: (Pack of 1)
Higher quality than OEM item fit and arrived on time. This was for a 2023 Subaru Outback
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Reviewed in the United States on September 15, 2025

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