Strange sound on acceleration

[jynxy]

Hi,

When accelerating it sounds like a tractor and a metal sort of sound, https://fraghost.co.uk/car.mp3

I have just replaced the turbo and everything has been ok for a couple of weeks and now this has started, is this turbo, injectors or something else. i took the exhaust of the turbo and checked for play and feels ok and solid, i cant see anything else causing the issue, this is the 2.0tdci psa engine, i think qxwa

Thanks