Hi everyone,

My car is sputtering when driving and throwing codes for the upstream O2 sensors (both). I want to replace them myself since the stealership wanted $424 buck for each!! I drive a 2008 g35xs. Can someone confirm whether these will work? I've never done this before, but seems simple (although tough with the location). The Bosch one goes for almost $200. Why so expensive compared to the Denso? What is the difference? May be important to note that I have high flow cats on and an aftermarket exhaust.

https://www.ebay.com/itm/Fuel-To-Air...8AAOSwmtNbUkCO

https://www.oreillyauto.com/detail/b...niti/g35?pos=0

Much appreciated.

 

No one replied so maybe this will be helpful. I bought the Densos 2349036 (234-9036) and changed them myself. So far so good.