['17 750i Msport]

This past week placed an order for a 2011 550i M sport. White ext, oyster/black interior. I know you can track on bmwusa but heard they are way behind on tracking car. From other peoples experience when can i expect to take delivery?..thinking 1st or 2nd week of June.
Also, is there an exhaust mod available yet..think it needs a little tweeking in the sound department.