Hey

I am new here.

I have a 2004 A4 and it started making this horrible growling noise. It seems to be related to "air escaping from the exhausts" (that's what someone that knows a thing or two about cars told me while fixing my car on a different issue).

I was wondering if you guys confirm this, and if you have any suggestions about how to fix this problem, hopefully without paying too much.

Thanks!