Originally Posted by Maz335i
DO NOT AGREE WITH YOU SIR!!!
LOL Maz... It all depends on what works for you
... The M-Performance struts and springs have been developed together to optimize ride and handling.
Sticking different springs on struts that aren't "made" for them gives you a "better" (subjective of course) ride within the threshold that those struts can handle. Remember there is no free lunch
If you're not bottoming out with your H&R's, and the handling is good, then perfect. I bet a track scenario may lead to a different result though :P. The problem is, that I wouldn't put the M-Performance springs on the stock struts unless BMW gives the thumbs up. H&R have developed their springs to work on stock. BMW might make the assumption they going on M-Performance struts. Over sprung and under-dampened is going to suck.