Hey,

Im doing a header install on my 94 Z, and need to know how many O2 Sensors I need. I have the chance to buy one, but the seller says it'll fit the front only. Are there two specific sensors for front and back? Or can I just buy two "front" ones?

 

Your 94 has only two O2 sensors, one in each manifold.

 

Are they each the same design? The guy has a chart on his eBay page saying it'll only fit the "front". Here's the link:
http://cgi.ebay.com/ebaymotors/NEW-A...QQcmdZViewItem

Just to note, Im going with a true dual setup, no cats... if it matters.

 

also dont forget they are the flat sytle connectors not square...

 

A 1994 only has "front" (pre-cat) sensors. No "rear" (after-cat) sensors. There are two of them, one for each bank of the engine, and they are identical. Generally recommended that you use only AC/Delco sensors for the best results.

Shoebox has part numbers and rough pricing info on his website:

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

 

^Thanks. Answered my question to a T.