The AEM gauge reads down to 10.0 accurately. I've had mine since January without a single problem. While on the dyno with a brand new o2, my gauge wideband was within 0.1 of the dyno the entire time.

 

i still got my WB in the box.... I was thinking about the Zeitronix but it's a bit expensive especially w/ the screen. Then you gotta find a place to mount it and all...

 

I had the first version AEM WB gauge feeding my AEM EMS for O2 feedback. The WB gave bad readings, the motor saw rich, leaned out and basically blew the engine at only 10psi boost during a professional tune. Be very careful to compare any WB with a a tailpipe one when on the dyno before you trust it. And if you are street tuning be very careful! Its a hell of a reason to "upgrade" your internals when you might not be ready for a "mod" that big!

I'm rebuilding now and plan to run an Innovate gauge.

 

Nothing wrong with the AEM UEGO. AMS uses one for their road tunes and I'm sure they for sure would know who makes a good wideband.

I got mine for $260 shipped but the vendor doesn't carry AEM anymore. You can definately bargain shop one for less than 300.

 

hpf has deals on the aem in the group buy section they'll hook it up. uego is nice, i love mine that zeitronix or whatever might be a little more accurate but it still looks like ***.

 

anyone out there have a better mounting solution for the zeitronix besides the old steering column? pics?

 

I got it inside the little curby holder thingy (the hole under the HVAC control)