Technical data - GT3 RS and GT3 as of model year 2004

GT3 vehicles as of model year 2004 are equipped as standard with conventional brake system (cast iron brake discs) - and, as an option, with PCCB brake.

In the case of the cast-iron brake, different brake pads (brake pad version) are sometimes used than with the PCCB brake. Observe allocation as per Spare Parts Catalogue without fail!

BRAKES TECHNICAL DATA - GT3 RS AND GT3 SPECIFICATIONS

Designation	Notes, dimensions	Wear limit
Operating brake (foot brake) with cast iron brake discs (standard) or with ceramic brake discs (option PCCB)		Hydraulic dual-circuit brake system with front-axle / rear-axle brake circuit division. Vacuum brake booster, internally ventilated and perforated cast iron brake discs with six-piston monoblock fixed caliper at front and rear axles. The brake calipers are painted red or yellow (PCCB) for visual differentiation. ABS 5.7 (4-channel ABS without PSM and without traction control)
Brake booster (vacuum)		10 inch
Boost ratio		3.15
Brake master cylinder	front	25.4 mm
	rear	25.4 mm
	Stroke	18/18 mm
Brake proportioning control		EBD(electronic brake distributor)
Brake discs	front	PCCB = 350 mm steel = 350 mm
Brake discs	rear	PCCB = 350 mm steel = 330 mm
Effective brake discs	front	PCCB and steel 284 mm
Effective brake discs	rear	PCCB 291 mm steel 271.2 mm
Piston in brake caliper	front 6-piston	2 x 38 mm 2 x 32 mm 2 x 28 mm
Piston in brake caliper	rear 4-piston	2 x 30 + 2 x 28 mm
Brake pad area	front	448 cm ²
Brake pad area	rear	248 cm ²
Total brake pad area		696 cm ²