I have a front heated bosch oxygen sensor for sale. I just took it out of my rear branch of my Y-pipe this past weekend. I am selling it because the threads are partially stripped. I was getting rained on and I was getting cold when trying to put it back in so I did not feel like dealing with it any more. It's close to new, but some of the threads are stripped out, and part of the "nut" is rounded. I'll sell it for $25 shipped if someone wants it. If not I will put it on ebay. Please post your email if you would like a picture.