I can't really read the number so i think ill take it off anyway... but i have B6 109? 078 063 is what i think i have, it is covered in junk and really hard to read so ill just take it off and then get a clear view of it...back in say 30 mins b/c stupid valve cover hoses are a pain in the ass, dont' wanna break them.

Which differs by only the "103" to match the golden TB

B2 211 078 061 A*
B5 215 078 063 K
B5 129 078 063 K
B6 304 078 063 K
B6 291 078 063 T*

* indicates auto tranny configured TB's.

UrS4's post is the linky.<ul><li><a href="http://forums.audiworld.com/12v/msgs/15557.phtml">http://forums.audiworld.com/12v/msgs/15557.phtml</a</li></ul>

Of course with TB's there doesn't seem to be much rhyme or reason behind the body stamped part numbers. It could be the same or it could be different. Only way to know for sure is measure the primary bore outlet with a digital caliper. For now I'll keep that number secret so as not to influence anyone's measurements.

When/if someone comes up with that magic number on a TB that has a different part number we'll know there's more than one with the same configuration. If someone has the TB with the same body stampings as mine we must presume it is the same.

and the "only" thing that dates it 96 or newer is the throttle cable setup on the TB.

It could conceivably turn out to be a cabriolet TB of 96 or newer vintage. If so thats gonna make this lil puppy damned hard to come by. There HAS to be some reason this throttle body has a larger primary outlet than all others. And while I'm grasping at straws I can't help but believe it makes sense Audi would try to make the bigger or heavier cars a bit faster to compensate for the weight disadvantage. Of course even that line of thought is pure conjecture on my part.

fourm loves cabs, he as a site www.autox.biz and ask him he sells parts and would have may numbers for you.