I was asked how much weight these would save, and based on my crappy electronic scale and not perfectly even hardwood floor (giving different readings), the fronts weigh between 13.5# and 14# (OEM are 19.1# each) and the rears are 9# each (OEM are 11.76#).
For the guys out there trying to shave unsprung weight/rotating mass, this is a great way to lose about 15#, and have great stopping performance all around.