Trying to learn the lingo here, and 'transposing' what of the S4 (which everyone here seems to have) is applicable to me (2002 Allroad 2.7T 6spd).
My ECU: 8D0 907 551 M: is that what is often referred to as an "M BOX"?
Where in the S4Wiki/Generations thing (here we go again) do I fall in with my car/engine/ECU/MAF/Etc?
http://s4wiki.com/wiki/Generations