GUESS WHAT PEOPLE I HAVE FOUND IT! THIS SOUNDS LIKE A VERY GOOD DEAL!

BMW Air Suspension Parts - X5 2000-2006 (3.0, 4.4, 4.8 Liter w/air suspension)

I think i will be all over this this is half price or less then BMW and LIFETIME WARRANTY!

Or does ANYONE know another company that maybe cheaper??