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      03-25-2013, 08:23 PM   #5
Sirius Black
Second Lieutenant
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Drives: 2013 F10 M5
Join Date: Jan 2012
Location: Annapolis, MD

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2013 BMW M5  [2.50]
I've only tried the RD Sport Springs. Did find them to be a marked improvement over stock. Particularly at higher speeds. Bumps didn't upset the handling as much. I thought I was going to sacrifice some ride quality, but was pleasantly surprised that it was more smooth with the RD Springs. The drop was quite nice as well.
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