Vibration noise between 2k rpm-3k rpm

Hi guys, I recently purchased a Skoda octavia VRS 2017/67 plate face-lift model, and I noticed upon hard acceleration there is a vibration noise coming from NSF side/passenger front more towards the middle, this happens in every gear when the revs are between 2000 rpm and 3000 rpm. Whilst I was travelling 40mph, I pressed the clutch pedal in and revved the car and noticed the vibration noise happened again between those revs.

The dealer i bought it from said it was a boost pipe leak but I know for a fact if it was that, the vehicle would be under power/limp mode and engine light would be on. I even did a smoke test to see if any pipe for leaking to which they weren't.

I asked a few mechanic friends and one of them mentioned a borne speaker which sits under the scuttle panel and apparently they were common to vibrate under hard acceleration. I removed the speaker and its still vibrating.

Im thinking it could be down to the gearbox and if it is I am going to return the car back within the 30 day period and get my money back but before I do that doea anyone know what it could be because its a very nice specced car and dont paticularly want to give it back if its a fix I can do myself.