I have Bilsteins struts on the front and stock shocks in the rear. The ride is stiffer but I can feel the road much more than I could before. I also installed Eibach front and rear sway bars, that REALLY made a difference in turn in and body lean.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas