Heard about the decel/backfire thing on these cars..Supposedly Haibeck tunes stop (car has H. tune).
Never noticed this til I listened to this a few times as its a little "boomy" in the interior but you can hear it .
Does this sound typical or like more of a miss?
(Towards the end of the clip)
http://www.youtube.com/watch?v=iJiF6YLhYgE