Quote: I have an AEM. Works fine, but the background lighting goes wonky occasionally and then randomly changes to red, white, blue, green, whatever. Strange.
Whichever you purchase, I would suggest getting an analog gauge as opposed to a digital readout. They are much easier to glance at and see how the AFR may be trending.
The gauge I have inside the car is a digital read out along with yellow green and red lights for a quick glance(I sure dont read the numbers while driving)
