its it worth running one??? or 2 for that matter?

 

The ones with LED lights are useless. They use the factory sensor which is slow and %70-%80 accurate. "Whats my A/F Ratio?.oh well.its green. Oh ok.I'll keep that in mind..I wonder what that means.?" To get good info about your A/F Ratio you need a high speed/wideband meter found at most Dynos or repair shops. Some people put them in because they look cool with the lights etc.but the "coolness" wears off after awhile and can drive you crazy on a road trip with that light bouncing around all the time in the corver of your eye.

 

I have mine at the bottom of my column. It can drive you nuts if its right in your view