This model isn't offered in the US, but I'll try my best to help.
Are you hearing this only when going over bumps? Based on your description, I suspect you feel it is suspension related. Is that correct?
Let me know as much as you can. Also, if it is loud enough to record. Please do so and upload it for me to hear. Additionally, a few pics of the modifications may help so I have a better understanding of what has been done.
Here is a link you may find of interest in the interim.
I will watch for your reply.
Monday, March 7th, 2022 AT 6:22 PM