So I just came back from the dealership, got my oil change done, and got the info and part. The part number was listed as 06B-103-221-P, and the description is "venthose". I bought two, even though they are supposed to last years, so if anyone wants one, post or email me. It is the price for one is $17.04. Took me about 5 minutes to install, due to my big hands. Also found out that the 2001 is the only B5 A4 to get that kind of hose, until now with the current models. Thanks for all the help everyone.

Here's a pic of both vent hoses, only need one:






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