After doing a lot of research on the forums, the majority of people will say not to do it due to the bad ride quality. Your shocks will wear out quicker with the h&r sports. I've read that you can get away with it longer on zsp shocks. There are a handful of guys on here that have had no issues with these springs on stock shocks and have ran them for 10,000+ miles. I think these are the guys who don't mind having a harsh ride.
This is just what i've gathered from the forums. I will be running these on stock zsp shocks. I only have about 23,000 miles on my car so i figured i would get the most out of them first then upgrade my shocks to Konis or coilovers...
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2011 328i E92
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