Wow, there is feedback from buyers, real or not is a different issue.
Once I install my new oven, I'll be offering up to the members of the board, a pre-sale of a similiar item, I have 4 that offer a Low, 2, 3, 4, 5, 6, 7, 8, 9 High boost option. But the limited item which has at least a ten fold performace increase, and I have only 1, offers 200, 250, 300, 350, 400, 450, & 500 settings as well as a special setting "Broil", but be warned, using the "Broil" boost may be too much for you too handle, from others I know who have this mod, it's like driving Schumachers Ferrari...
Current
2008 M5 6 Spd
2000 Z3 2.8 5 Spd MSport
2012 X5 35d Sport
1995 540i 6 Spd
1992 535i 5 Spd
Former
1995 530iA
1986 635CSI 5 Spd
2011 X3 2.8 MSport