I have the dinan springs and front sway bar (Stage 2) on non-EDC. IMO...sways are a waste. The sway bar is not the issue. Get vorshlag or GC camber plates and a square tire setup if you want to dial out what very little understeer is present. I prefer the Vorshlag plates.
In fact, I plan to go back to the stock front sway bar.
2013 F30 328i Melbourne Red
2011 E90 M3 Monte Carlo Blue
2004 E46 M3 Imola Red