Annoying buzzing noise at 2800rmp and up 2.0tfsi

New here so hope someone on here can help as no one else seems to have this issue.

I have a 2009 Mk2 FL Skoda Octavia VRs hatchback 2.0tfsi. I brought it at the start of the year and was fine but once I got home I noticed this really annoying sort of buzzing noise when I get to about 2800rpm, coming from the front right hand side of the car. does it while driving and stationary, I’ve had a look myself and had 2 independent garages have a look, both garages didn’t know what it was, some forums online said it could be the fuel lines under either so I’ve stuffed foam in there which hasn’t done anything. One garage said that it was the fuel lines and I would need to replace the HPFP and LPFP and maybe the fuel lines which I don’t really want to throw money into if I don’t need to, as I’ve changed the live data on the HPFP and it looks fine. I’ve also replaced the turbo as I had a low boost pressure fault and the waste gate was loose but that’s not fixed it either, I’m running out of ideas and can’t think of anything else.