Any need for an Air Fuel Regulator for my car? I don't plan on doing forced induction or anything major anytime soon, but I guess some guys have these even on relatively stock cars. Came across a new-used one for $150, is it worth it?

 

Don't all rush to answer me at once. Geez, WTF?

 

I'm assuming you mean an Air/Fuel Ratio Gauge? If so, the answer is no, you do not need one. But if you're referring to a Fuel Pressure Regulator, then the answer in that case would be no.