OK. Here is a quantified answer. NZ Autocar have just finished running a VBox on my car. The 100-0 (kph) was done in less than 31m. To put that in perspective, the new V10 M5 stops in 34m, an M3 CSL 32.55m, a Lotus Elise 111R in 34.6m an F360 F1 in 34.59m.
As stated, Mintex 1166 pads are the only real change to the standard BMW package. Brembo vented & slotted rears only. The tyres will contribute also, as they are also extremely important to the stopping distance and handling.
Braided brake hoses will only bring about a noticeable change if your existing hoses are tired and stretched. Again, mine are still stock.