Honestly there really isn't a need for one. I have one and don't really care for it. The reason behind that is the fact that the computer is always adjusting the A/F ratio, so all the gauge does is go back and forth. When you hit the gas it goes to rich and then you let off it goes back down, otherwise it goes back and forth all day long, it would probably be more benifical for you to put your money someother place.
BTW I hooked mine up to a box under the hood on the passenger side, I traced the wire from the o2 sensor and that was the easiest place for me to do it.
Sprtnlax14: i was was up at 4:30 to hunt
LtlLinds424: you did NOT just say hunt
Sprtnlax14: whatever, the day you become a vegan we'll talk
LtlLinds424: the day that you stop only spitting game and not producing girls in your bed... we'll talk