i ordered my through tirerack. If there were a set of bilstein pss for the x5 i'd totally jump on it. I've done Ksport coilovers during my highschool years.. thats like +10 yrs ago. those were grueling. I was sick one time and coughed so hard I pulled an ab muscle. The ksports were so rough and bumpy that driving on the freeway was very painful. Are there any forum members with the KW's that would like to chime in?