I have a 2007 328i at a little over 150k. For about a week now, the engine sound really deep, almost as if I straight piped it or something. Noise is coming from under the front passenger side.
I feel like there is a little loss of power, but mostly feel like the car is 'floating', especially when accelerating between 20-40mph. Anyone have any ideas before I pay for diagnostic?
http://vimeo.com/344031250