Just wanted to write an update to my post. Late last week I got in the new tips from Corsa. I took off the two active tips zip tied up the wiring and took it around the block without the active tips.
The noise had stopped, well at least I could no longer hear it because the car was so loud and...
I saw this thread and just wanted to write an update about my experience. I just purchased and installed this system on my 2020 Mustang GT and it instantly began making the rattling noise. I did a quick search and found this form, based off this information I decided to call Corsa.
Corsa was...