I have H&R's on my car right now and they are too stiff for my taste. I've had a positive experience with ACS springs on my 550 so this week I'm going to swap on my M5. Btw, I hated the H&R springs on my M3 as well. Seems like they were made only for the track.
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2018 530e M Sport
2013 BMW M5 (retired) - 2011 F10 550i M-Sport (retired) - 2008 E93 M3 (retired) - 2007 E93 335i (retired) - 2006 E60 550i (retired) - 2004 E60 545i (retired)
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