What were you upgrading FROM suspension-wise?
I ask because I'm in the same boat with the control arms/shocks/springs versus LSD. I've heard arguments for both sides. What was your reasoning for doing this before the LSD and rear subframe stuff?
'09 E93 M3 6MT, H&R sports, 15/12.5 TMS spacers, VF540 kit awaiting install and Evolve tune file
'09 Z4 sDrive35i, Deep Sea Blue Metallic, DCT, Premium Pkg, Ivory Leather pkg