I highly doubt any emissions monkey will know the difference between a M103 and M104. The last time I took in my 300E, I popped the hood for them as asked. I saw the guy open the hood maybe 2-3" and then close it. Didn't even look.

__________________
http://i193.photobucket.com/albums/z...-RESIZED-1.jpg
1991 300E - 212K and rising fast...