08 335I Sport,Premium,Auto,Blk/Blk,JB4,DCI,Alpina
Drives: e92 335i
Join Date: Nov 2012
Location: Norman, OK, USA
Well the JB4, even on old software, improves the problem quite a bit so it is probably related to throttle tip-in as the previous poster indicated. Much smoother to the point that if it had come this way, I probably wouldn't have noticed.