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This is the same sensor that comes with the AEM Wideband (UEGO) Gauges, and plugs right in to the AEM wiring. If you already have a AEM Wideband and need to replace the sensor, this is what you need to buy. Check out the video above to see if you need to replace your sensor. One thing to keep in mind is *ALL* O2 sensors are replacement items, stock, AEM, Innovate, Dynojet, etc - all brands. Think of your O2 sensor like you do your spark plugs, even though some contemporary spark plugs are designed to last 100K miles, if you have changed your tune it can effect how they perform. In a rich condition, both spark plugs and O2 sensors get a build up that effects their performance. We know some racers that change their O2 sensor ever time they change their spark plugs to keep things in tip-top shape. On the other hand, we have seen our sensors last over 3 years in race cars running race gas, so sensor longevity is heavily based on the tune of your car. AEM uses a Bosch sensor with the Bosch chip set that uses the ambient air to perform a self calibration, so contrary to what the internet/forum wizards say it does not need to be calibrated, even at altitude.
