I found 2 comptech headers for sale both say B series yet one has a o2 sensor mid way up on the header and the other only has a o2 sensor right by the collector, can anyone that has a B series comptech header veirfy this for me, both are under 200 so im replacing my Obx junk now.

 

First of all, if their both less than $200 a piece then most likely neither are actual comptech headers. My comptech cost me almost $600 new. My 02 sensor is on my test pipe b/c my header doesn't have an 02 sensor on it, i haven't seen many with 02 sensors on them but it's b series so i'm guessing it should be by the collector but i'm not positive.

 

Are they both used? Do you have pictures?