I have Bilstein HDs all around - fairly new - that came with the car when I bought it. I cannot say anything against the HDs in the rear, as the rear rides quite well and has taken full trunks stuffed with heavy bags and suitcases on long trips in stride, where other shocks would have probably bottomed out all the time. The front HDs I frankly don't like as much now... The front seems overly stiff and bouncy and gets my front tires ribbed. It also sits high up front - higher than it should... Which makes me wonder if my front shocks are defective!

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84 300SD - bought in April '06 with 237,000 mi