I like my Bilsteins, but if I had it to do over again I would save the $ and get KYBs. I loved how they made my Bronco ride. Didn't even think about them for the Excursion for some reason. I think it was when I was all caught up in the mod mode and just doing what everyone else was doing. These free sites are getting expensive.
From what Ive heard, they are pretty decent, and the price on them isnt too bad, I have the ES 9000's and I like them, if the MX-6 is as good or better you wont be dissapointed!!