For all the people who are complaining about the lag, either get a tune or get sprint booster. That will eliminate(reduce) the lag. Please dont turn this thread into sprint booster thread though. I was just suggesting a possible solution to the lag. I plan to get a used sprint booster(v1) and connect it to a switch(sport switch from M3) so I can turn it off when I dont need or have to reverse(I have to parallel park and dont want to hit anyone). Have been keeping my eye on the classified's for a v1 sprint booster and a switch panel with heated seats, HK, DSC and SPORT buttons. I know there is a thread on V2 sprint booster connected to the SPORT button. But I only want it ON or OFF so V1 will do for me.
I love my steptronic for my daily driver needs, and will buy another one without any hesitation for a DD.