4379 Ultra-Lite Wide Band Air Fuel Ratio Kit,2.3125 in.

I've had the gauge for a while now and still working as expected. Great for helping with tuning your motor or if your running boost or nitrous. It also has two wires that provide 4V linear output to use on your ecu or data logging port.

Exactly what I needed to replace my aem wideband on a 04 twin turbo cobra. All lights look amazing and gauge is very responsive. Easy to read. Cheaper than buying anywhere else.

Works great on my 200 Ford six with a Carter BBD 2 Barrel. I was able to adjust the step up piston travel at WOT. I also reduced the size of the transition circuit slots with JB weld to a correct Idling best with the mixture screws all the way in problem. This also corrected it not going lean on deceleration. With this meter you will have your own carburetor school while you drive. With the money saved buying on Amazon I bought the AUTO METER 2204 Mounting Cup and mounted the AF meter on the steering column of my 1963 Falcon wagon. I used a steel Walker O2 sensor bung from Oreilly Auto parts instead of the supplied stainless bung.

Time will tell but I would buy this gauge again.

Have not installed it yet, but I'm confident Autometer has built a good instrument. I will update my experience with it once it is installed.

Heads up. This is kind of a pain to install. Not for Newbies. Great product otherwise. Looks good. Works good.

Straight forward installation, seems very accurate as I can see the when the car drops into closed loop.

Opted to try this gadget to help tune an older carbureted engine. Purchased a sleeve from Glowshift with pre welded O2 bung and was up and going with accurate tune about an hour later. Kicking myself for wasting so much time trying to “ear tune” my old truck at different RPMs.

Excelente funcionamiento

Nicely made, should have done the job but it didn't work, just showed a constant 14.9. Perhaps it suffered in transit, having been sent from the US to the UK in a brown paper bag, and then delivered by a UK courier which is so notoriously bad they recently changed their name.

Works great so far. Had a aem one that lasted 3 mins replaced with this and no issues yet

Autometer is the best and all I ever use.

esta funcionando hasta ahora es buena marca pero si me salio caro