Hey guys
I tried searching o2 sensor and oxygen sensor and I can't find the information I need!
What kind of o2 sensors should I get for my 05 g35 coupe?
I've never replaced o2 sensors and I'm not sure whether to get oem or aftermarket.
Can anyone give me more info or have links to more info?
I read mixed reviews online on whether oem or aftermarket is better!
Recommendations are welcome as well.

Thanks guys!

 

I have used the Denso OE replacement sensors. I don't remember for sure what came out of it, but I remember I was surprised. Maybe Bosch?

I did not notice any performance difference and no gas mileage change. I changed both front sensors at 100K as PM. I would have liked power and mileage to go up, but I figure no change is good too.