Originally Posted by 2002Silver4.6is

Well, my dealer told me the reason the SES light was on was that both of my down stream Oxygen Sensors were bad. They would be happy to set me up with new ones installed for the mere price of $660... wow !!

I found two brand new ones on Ebay for $100 total vs $400 from the dealer. My local Sunoco, which happens to be a decent shop, installed them for $170. I figured they are just O2 sensors and this isn't isnt a job that a Euro shop or a dealer has to do. So for $270 I was out the door and saved almost $400.

The reason I am posting this is so anyone else needed to get this done knows there alternatives to spending almost $700 to have O2 sensors done. I know these are high end autos and things aren't cheap but there is no reason to be stuipid either.....