Like I said whats the best one as far as price and install. Do they come with a 02 sensor?. thanks

 

I have an Autometer Sport comp a/f gauge. Its always worked pretty well, and does light up nicely..
I mounted mine were the clock goes in the center of the dash between the A/C controls.
There's a picture on my website if you'd like to see
Also from what i know, no a/f gauge comes with a 02 sensor

 

the autometer kicks ***,but you will have to get your own o2 sensor dont worry jcwhitney has them