It's been a minute since anyone has posted here; however, I just installed the RS4 catback, FM cat, and Raceland header. Here's a vid on it after letting the car come to temp for ~20 minutes.

https://youtu.be/Rs7PZNtd7BM

Here's another one showing off how it looks from the underside:

https://youtu.be/x1O_7HcCICc