AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge

I’m writing this for people on the fence about whether it is the real AEM gauge/sensor or not. It is, I went to AEM’s website and compared the part numbers and pics and it is exactly the same. I installed it per instructions and warnings and it is working perfectly. It’s a good deal and a great product.

Easy installation and a great tool getting my motor tuned

Works exactly as it should.

Authentic sensor and security sealed from AEM. Comes with authentic FAE sensor & paper warranty information.

Easy to wire up and works great.

Works good and reads AFR’s as it should.

As promised, I'm updating this review based on the customer service experience. I installed this to replace a dying old 14point7 gauge and it was DOA. It just read "SEnS" when I powered it up, despite having good wiring continuity. I emailed AEM with a specific description of the issue and they had me call and arrange for a replacement, there was no hassle and the customer service people were friendly. When all was said and done, I put the new one in with the already-installed wiring and it works fine. I like the responsiveness of its output for tuning and the sweeping LED part of the display is useful for visualizing transients like acceleration enrichment when you don't have your laptop hooked up. The only negative about this unit is that the bezel is thick compared to most other wideband gauges, and based on the form factor of the actual gauge part the size of this part is pretty excessive. It's also gloss black, which doesn't match the satin/matte black of most interiors and gauge bezels, but I just had to remove the bezel and paint it to rectify this. Tip: don't go through all of the hassle of running the wires and stuff until you bench test it out of the box. That way you know it's functioning before spending a few hours fighting with grommets and taking interior parts out to run wires cleanly.

Good brand