911 Carrera 4S (997) F6-3.8L (2007)
Technical data/Brake wear limit
Technical data - C2/C4 as of MY 2009
Operating brake (foot brake):
Dual-circuit brake system with brake-circuit division per axle.
Internally ventilated and perforated grey cast iron brake discs on front and rear axle.
Four-piston monobloc caliper on front and rear axle.