I have the Bav Auto kit and it seems to be working well (on for just a few hundred miles now). Honestly, I'm not sure how whomever did your alignment after you lowered was able to get the alignment anywhere near where they would let you leave the shop...

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2005 X5 4.4i Sport /// Bilstein HD Front Struts...B&G S2 Sport Springs...Eibach Front & Rear Sway Bars...City Vision AE's...LED License Plate Bulbs...Matte Black 132's