I fitted my 380mm Gran Turismo bbk Today and thought I would weigh everything for ref.
Stock (worn) front rotor 9.86kg or 21.7lb
Stock caliper/carrier/ worn pads assembly 6.38kg or 14lb
Gran Turismo 380mmx32mm rotor 9.25kg or 20.35lb
Carrier 1.44kg or 3.1lb
6 Pot Monobloc Caliper 3.46kg or 7.61lb
Pads 1.46kg or 3.2lb
So in total, the stock setup is 36lb
Front Gran Turismo 380mm kit is 34.25lb
Not much weight saving, but who cares when they look so good