Get a friend to drive it whilst you stand by the roadside.
Its beastlike
I personally thought my ITG was louder than my revo - revo was more acute and precise sounding where as the ITG was a hormonal darth vadar!
It does sort of snuffle,doesn't it!
Just the sound of the intake hooveringup anything in the car's path.
Since swapping the turbos on my car the intake noise is the least of the noises....the exhaust is much deeper and louder.