I know theres front and back, but i thought that they were less then 100 dollars for the 2000 year?

 

And your question is.....?

 

Am i wrong thinking that the 2000 sensors are alot less then 100 dollars or what?

 

I have a 2001 a4 1.8 and i am just buying some new o2 sensors as well they go for like 180 from the dealer definitly not less than 100. don't get them from like autozone or advanced or anwhere like that thouhg cause they will give you the wrong ones go to ecstuning.com they have all of them.

 

http://www.ecstuning.com/stage/edpd/...;engine=V6+30v

Here is the one i need for my car ( i think) ive never seen an O2 sensor, so im just making sure this is what i need, i need to replace the sensor past the CAT.

 

you can't find an 02 sensor that already has the plug wired together?

i don't know what your engine code is, but this is more along the lines of what you're looking for:
ecstuning.com part numbers....
ES#8367 Rear Position
ES#7012 Front Position
The rear position sensor is much shorter than the front position one. Also, if you're gonna do this yourself you might want to get a spray on product that loosens bolts because they can be a b*tch to get unscrewed. ecstuning.com also sells a fitted socket that will fit onto the 02 sensor to help unscrew it, but its like $30 and you're probably only going to use it like once...

if you're unsure of what 02 sensors to get, just call ecstuning. They've got the cheapest prices around for the 02 sensors, thats where i purchased mine.

LampyB.

 

It may work, but you will have to splice the wires to the connector. You can get Bosch universals cheaper on ebay.

Otherwise buy prewired.

 

prices and shipping costs of an audi oxygen sensors really do varies, to where and what kind you'll gonna buy.. ebay is a good place to start looking for parts at a reasonable prices; you may also call the hotlines of some online stores to have a more accurate info on prices of oxygen sensors.. good luck buddy..