My rear Bilsteins are still working fine after 40K. Fronts were lasting less than 10K.
My theory is the firmer damping on the Konis and Bilsteins creates more heat and causes faster oil breakdown and or seal failure. I have a suspicion the airbags insulate them a little as well.
I would like to see some remote reservoirs to increase the oil capacity/heat dissipation.
I'm concerned that the dampers only seem good for 100K max. This will get expensive if I have to replace all the suspension struts every 80-100K.


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