A friend of mine has a 2002 V6 Stang and she wants me to change out her 02 sensors for her. I haven't had a chance to look at it yet and I was wondering how difficult it is to do and what will be needed. Does anybody have any pics of where they are located? She told me they are hard to get to or something but yeah I was just wanting to get a good idea of how difficult it's going to be. Thanks.