You have to cut and weld or clamp bro. Not sure about when you put it back on. Maybe someone with this system can chime in.
2016 F15 X5 3.5xdrive (Current) - 2013 535i xdrive (Gone)
2008 E92 M3 (Gone) - 2006 E90 325i (Gone)
2002 E46 325xi (Gone) - 1991 E30 325i (Gone)