Hello all,

I know this has been talked about many times. I have read alot of posts about it but............ I wanted a real specific response about this. I have to get a pre-cat o2 sensor replaced on my 03 TT and was wanting to know if the OEM at $400 is superior to a Bosh or any other aftermarket not OEM for $150? Anyone really know if it matters? Thanks for any and all opinions and help....

Scott

 

The OEM one is a Bosch. Porsche does not manufacture o2 sensors. Their is a post on the knowledge forum about this very topic that should give you everything you need. You can buy the Bosch ones that are play and play at advanced autoparts under number liste the above thread.

 

Bosch 17044. I got both from Amazon for 79 each.