The kit you listed seems to be discountinued by Eibach (they sell front and rear separately now . . . if you can find the front bars) but it is an upgrade over the stock sway bars.

I was planning to get the same kit but just found out why you can't buy the kit on most sites. ECS Tuning has the kit listed on their site but not sure if it is available.

Anyway, The rep at autoanything.com just informed me that Eibach discountinued production of the front bars because there was a design flaw with the US production - he called Eibach. The German made version has no issue(s) but are hard to find and they don't carry it.

Looks like I'll be looking at a dif. manufacutre for a kit. Let me know if you know of any other companies. The only one I found that carries the sway bars for the X5 is Eibach.

BTW, I have an 05 4.4 - black!