Since a couple of months my GRiSO has developed a new sound! This started after I cleaned and reinstalled the throttle body but I'm not sure if its related. Low speeds everything is fine but from 110km/h a high pitched whine becomes audible which increases in volume reaching its peak at >120km/h overtaking the engine and wind noise.
Any usual suspects? I would normally think wheelbearing but I had the front wheel bearings replaced at a dealership in March.