This video has some dyno proof 1200 mi service doesn’t uncork any power
Lots of stuff to digest here. Not sure this content carries over to X3M or just the LCI but this suggests M3 has a dyno mode thru instrument cluster and you can reset car to mimic 1200 mi service. Of course you still need the fluid changes.
Troubling to me is his conclusion anything other than Comfort setting with a Jb4 actually restricts power. Maybe his JB4 is set wrong and needs throttle mapping adjustment. Now I’m questioning my Racechip and whether sport plus is going to rob power. Exhaust note is too tame in comfort