I mentioned before that XHP eliminated about 50% of turbo lag on F10 535i, actually it is like 90% or more.
With the launch control you can eliminate starting lag (shown on the video below), up shifts are fast and I got 0-60 in almost entirely in the 2nd gear in about 4.6 sec. Hardware wise this is stock car only with charge pipe installed and MHD stage 1 & XHP stage 3 applied
Even I had MHD installed before, XHP really brought this car to life. I would highly recommend XHP.
here is a video