[TribalChicken]

Drove into work today, sound has definitely quietened down to near normal levels after flipping the tailshaft back and setting pinion angle back to factory). Not completely gone, but it has always made this sound.

I'm thoroughly confused now

 

[cocoelguapo]

I have a hooting sound too at speed and I've put it down to roof rack, snorkel and brick-like aerodynamics.

 

[TribalChicken]

The thing that annoys me with this one is it isn't just vehicle speed... If it was consistent with speed I would suspect roof rack or something - But it only occurs at speed and under certain throttle conditions... I can just about play a tune with it by adjusting the throttle

 

[JoeBoy]

Mate did you ever figure this out? Mine is doing thr exact same thing, but it happens at 110. It's a loud fog horn kind of sound. Like you said, someone blowing on a bear bottle, but 10 times louder.