I have to get my o2 sensor replaced so i can get it inspected and so that it can pass.

its throwwing a 141 right now which is the one after the cat or w/e.

My questions is if i'm going to do headers should i just go ahead and get a o2sim? or what?

Also how do you install an o2 sim? Does it just screw in like the other one?

Also is an o2 sim from autozone good?

 

well just found out that autozone doesn't sell them , was told they did though. Anyone know anywhere else that i can get one?

 

You can pick up o2 sims from summit or jegs. If you need something immediate/local I'd suggest hitting the phone book up and just calling them up and asking. the post-cat o2s are the square 4 connectors, not the flats, just in case you hadn't checked them out yourself.