i was looking into buying a set of headers and i was wonder if they all came with hookups for my o2 sensor i know all of them dont come with hookups for A.I.R but i was just wondering about the 02 sensor!!

 

Not all. TYpically, you have to buy "emissions legal" headers to get the O2 screw-in and the AIR tube hook ups.

If they have the AIR tubes they almost always also have the O2 sensor. Don't know of a set that does not.

 

A lot of the time when you order headers you can specify that you want an O2 provision. It may cost you an extra couple bucks though.