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AEM UEGO X-Series Wideband Controller w/ Gauge Kit (Part Number: )
AEM UEGO X-Series Wideband Controller w/ Gauge Kit (Part Number: )
AEM UEGO X-Series Wideband Controller w/ Gauge Kit (Part Number: )
AEM UEGO X-Series Wideband Controller w/ Gauge Kit (Part Number: )
AEM UEGO X-Series Wideband Controller w/ Gauge Kit
Read 2 Reviews | 1 Q&As
Part # 30-0300
msrp: $254.15

In stock! Ships same day
Universal part

Features & Product Details

When it's time to get a new wideband O2 meter, or to replace your current wideband, then you might be pretty happy with the new AEM X-Series UGEO Wideband Controller Gauge. Wideband gauges should become standard in turbocharged vehicles because they produce a value (AFR) to let the driver know that they are running on a proper tune. Over time, things such as a boost leak, vacuum leak, malfunctioned components, or a bad tune can cause your vehicle to run lean or rich under boost. If you're running lean under boost then your motor won't last much longer. But this wideband is not just limited to turbocharged vehicles, it can be used on normally aspirated applications that could be making substantial amounts of power through bolt-ons. 

The X-Series gauge uses the latest in patent-pending digital technology to deliver faster response time with AFR readings. This wideband gauge features a weather resistant low-profile gauge that responds quickly to allow tuners to optimize on tunability. And because of the gauge's high-speed digital implementation, it ensures that there will be no loss of signal and response which is very important for a solid tune. 

Everything will be included with this gauge to make it ready for installation which includes the Bosch 4.9LSU UEGO sensor, along with the appropriate contoller and wiring. A bung provision is also provided for the user to have welded onto their preferred location. 


Brand: AEM
Gauge Backlight Color: Red LED
Gauge Face Color: Black
Gauge Needle Color: Red LED Display
Gauge Range: 7.4:1 - 22.4:1
Gauge Sending Unit: Electrical
Gauge Size: 52mm
Gauge Type: Air Fuel
Requires Control Unit: No
Sensor Thread Pitch: Standard O2
Wideband Sensor Type: Bosch
Mfgr. Warranty: 1 Year
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
WARNING: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.



2 Reviews
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Easy Install 04 WRX 3 months ago
Love this gauge. It was an easy install and keeps my engine safe.
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wish i would have bought sooner 4 months ago
i had been putting off getting a wideband due to thinking install would be complicated but i finally jumped the gun. THIS IS BY FAR THE EASIEST THING I HAVE EVER INSTALLED. If you plan to run the gauge standalone ( not hooking up to any aftermarket ecu/tuner) you literally just need 12v power and ground, pop the sensor in, snake some wires, and your set. looks quality, and works amazing, i highly recommend this to anyone considering a wideband, super easy install and mad benefits of having one.
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  • Q: wideband  Duarte201411 months ago

    what is the difference between this wideband controller and the 4.9 version, besides price?
    • 0 of 0 people found the following answer helpful

      A:  Basically from the description, this gauge is going to be quicker and more accurate then most AFR gauges.

      Tyler A. @ RallySport Direct 11 months ago  
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This Part Fits

Universal Product
This item is non application specific.
Please verify compatibility before purchase. May require some modification for proper installation.