See my sig for all the new susp mods I got. Ride is same, not much harsher at all. Gone is body roll and much less understeer. Jury is still out as I am waiting for cooler weather before AutoX and track time.
2012 135i DCT, BMWPE, BMWP springs, Bilstein HD dampers, M3 front control arms, E92 M3 front sway bar, M3 subframe bushings, BMS Angel Eyes, ETS FMIC