I did the Bilstein Touring (black) with mine - 4.4i w/sport package. They are great, a little firmer than stock, well controlled, not harsh in everyday use. Recommend.

__________________
2013 X5M - Sapphire Black
2006 X5 4.4i - Sapphire Black
2002 M3 Euro - Alpine White
2003 M5 - TiAg
2003 M3 - TiAg
2010 535i - Deep Blue Metallic
2007 530i - Deep Green Metallic