Sorry no sound clips, and honestly they never really come across true anyways. But I recently got the Borla Touring cat-back and I don't have any drone. Honestly over all it's way quieter than I expected, which is fine. This is on my 2.3.
I ended up going with the Borla because they have the additional resonator you can add to the tailpipe if you need a little more noise control.
Plenty of sound clips on multiple platforms. Can do a search here, google or youtube.
Also I would recommend Fast Intentions axle back. Heard it in person and pretty good. Ordered mine recently. They give a B6G discount too, code axleback22