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I just spoke to someone at Bilstein and they said there's only a PSS9 kit for the 1er and no plans to move to the PSS10 platform. I asked for spring rates and he was embarrassed to tell me that the kit is so new, he doesn't have the specs but will get back to me when he's got em.
The Part# for the e82 is F4-GM5-B579-H1
The Part# for the e90 is F4-GM5-C051-H1
BMWEBER, I've heard of the PSS9's having some issues with the shock leaking or the seals not holding up, are you experiencing any of this?
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