ive seen mods for the pre-facelift models that you can do if yours is a 99-03 model, otherwise the 03-06 facelift have them. Personally i like the pre-facelift more than the facelift (especially w/the clear corners)

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2003 BMW X5 Sport pkg, DSP, cold weather package, xenons
2003-2013 (Total loss as a result of accident) 109k miles at time of accident