Quote:
Originally Posted by M-bitious
My car has both EDS and M-drive and is fully functional with OEM behaviour. Hartge have developed them specifically for the M3. Had the Hartge springs on my M6 and had no problems at all.
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That's good to hear. What makes you say the functionality is consistent with OEM behaviour though? Have you driven your car in non-modified and modified versions hard on the backroads or a track? I don't mean to challenge you on this. I'm just trying to understand where you are coming from as this is a mod I am considering. Also, do you have vendor data on the stiffness of the new springs, and how that compares to the stiffness of the stock springs?