So I was driving the 3 the other day, put the foot down when I was in 5th going about 45mph, it started spooling and I heard a subtle, very quick pop and looked in the rear view and saw a little black smoke behind me. It quickly got right back under boost and it was fine, I then let off in a worried state. I put it in neutral and redlined it for a second to clear it up. I then downshifted and it was back to the norm, an awesome little car... I wonder why it had a miss like this, I really wonder what it could have been. No CEL or anything.