My brake system upgrade arrived at Achtuning today. I choose to go with the STaSIS/Alcon 370mm (14.5″) 6 piston front kit and the 305mm (13.0″) rear rotor upgrade. The kit includes rotors, pads, Motul 5.1 fluid and Goodridge stainless steel lines, and necessary hardware.

I took the time to weigh the new brake system components:

Front carrier – 1.4lbs
Rear carrier – 0.6lbs

Front Alcon rotors 14.5″ – 14.5lbs
B6 S4 OEM 12.25″ –  26lbs

Rear Alcon rotors 13.0″ -13.3lbs
OEM 10.0″ – 9.4lbs

Front Alcon 6 piston calipers: 7.8lbs