whats up guys i have a 96 z with hooker long tube headers and my o2 sensors are bad. i need O2 sensors and extensions. I went to order sum and there are like 3 or more different sensors with diff conections. Can sumone help me out and point me in the direction i need to go and also a good place to get both. thanks!

 

The two pre-cat (front) sensors use a flat 4-pin connector. The two after-cat (rear) sensors use a square 4-pin connector. Shoebox has a website with part #'s for many LT1 parts, and a recommended source for discount prices.

Home:
http://shbox.com/1/4th_gen_tech1.html

Parts list:
http://shbox.com/1/Parts.htm

1996-1997 front heated oxygen sensor
AC-Delco # AFS75 19178930
(old 25312184)

1996-1997 rear heated oxygen sensor
AC-Delco # AFS97 25312196


Parts source:
http://shbox.com/1/4th_gen_tech2.html#Dal_and_Jason

Generally recommended that you use only the AC/Delco (or now Delphi) OEM sensors.

For harness extensions, look at the list of Supporting Vendors linked at the top of each page. Start with Thunder Racing.

 

I have longtube headers and No cats. Does that mean I only have 2 front O2 sensors or is there still 2 sensors in the rear?