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.
2015 M3 MG/SO 6MT, MPE
2013 CTS-V Wagon AT Thunder Grey
2013 135is 6MT Carbon Black SOLD, Dinan Stg 2
2012 135i DCT Space Gray- SOLD, Dinan Stg 2
2009 C63 Perf Pkg Polar White- SOLD, Kleeman