Time to get new O2 Sensors

[dkeo]

Okay so i need to get new O2 sensors for the "3" its a 2.3L S 2004. Exhaust system on it is a HKS Hi Power... Not sure what the best o2 sensors are to get. I was looking at Bosch and NGK-NTK but I am a little lost as to what O2 sensors i should get given the HKS exhaust system. Maybe I'm over thinking it but its my first time replacing the O2 sensors. I will be ordering them online so if you guys wouldn't mind sharing links that would be great.

Thanks

Edit: miss spelling

 

[njaremka]

unless you are getting o2 sensor CEL codes, you don't need to replace them. they are not a maintenance item.

that being said, there is really no difference between an OEM sensor and an aftermarket, and the ones with the wire splice connections will be the least expensive. just have to make sure you make a good connection.

and, whichever exhaust system you are running has no impact on o2 sensor selection.

 

[dkeo]

unless you are getting o2 sensor CEL codes, you don't need to replace them. they are not a maintenance item.

that being said, there is really no difference between an OEM sensor and an aftermarket, and the ones with the wire splice connections will be the least expensive. just have to make sure you make a good connection.

and, whichever exhaust system you are running has no impact on o2 sensor selection.

Thank you very much that is good to know. And yes i am getting CEL codes on the dash. Might as well replace both right? i believe there are only two on a 2004 2.3L 3

 

[njaremka]

depends on what the codes are for...

 

[adumbrille]

get your CEL diagnosed so you're not shitting away your money. I really doubt it's the front one, your car would drive like piss and have no power. I would recommend getting original replacement from Mazda as people have had issues with aftermarket ones.