Originally Posted by nuzey
I shifted normally by listening to the exhaust note but to find it was way above 3k rpm, like about 5k rpm when I shifted to next gear. So now I have to adapt to a different tone from the exhaust at 3k rpm in order to shift like how I used to.)
This is simply my own observation, and I sincerely do NOT mean any offense by this... but I do believe you are driving the wrong type of BMW. Based on your own description of your driving style, I'd like to whole-heartedly recommend that you trade-in your M3 for a 335d.