Here is a little test drive, take with my phone on a dash mount, windows down.
https://photos.app.goo.gl/2KNjGtkLneYUuvzV2
Pics:
Full from rear:
https://photos.app.goo.gl/nQhGCuxUjQ0tAXz02
Downpipe:
https://photos.app.goo.gl/QvrVeH4YCrf9I5eX2
The silencer/muffler/resonator (what would you call it?):
https://photos.app.goo.gl/AOcJWur5f2yGu3N63