I installed one on my 2002 4.4 on Sat. Definitly worth the money. Makes the X5 much more fun to drive. Having said that, the red setting is a bit much but green works great. I just leave it on green all the time. IMO the X5 should have come from the factory like that. 200 miles on it and no issues.

Super easy installation but haven't decided where to put the wired control button yet. I may just disconnect it since it is supposed to remember the setting.

Anyone know if it will remember the setting if the battery dies or is disconnected?