Brembo 2S3.9005A1 GT Big Brake Kit 380x28mm 2-Piece Slotted Rear Rotors Black Calipers

The Brembo GT Big Brake Kit (2S3.9005A1) delivers race-proven stopping power and heat dissipation for high-performance driving. This rear axle upgrade features Brembo's iconic 4-piston monobloc aluminum calipers finished in black, paired with massive 380x28mm two-piece floating rotors with Type-3 slotted directional design for superior thermal management and consistent pedal feel under extreme conditions.

Key Features:

• 380mm x 28mm two-piece floating rotors with Type-3 directional slotting for optimized cooling and degassing
• Forged aluminum 4-piston monobloc calipers in black finish for reduced unsprung weight
• Two-piece rotor design reduces weight while improving heat dissipation
• Direct bolt-on application for Porsche Cayenne, Cayenne S, and Cayenne GTS models (2011+)
• High-friction performance brake pads included
• Stainless steel braided brake lines for firm pedal response
• Complete hardware and installation instructions included

Brembo GT systems are engineered to provide dramatic improvements in braking performance, fade resistance, and rotor life. The two-piece rotor construction uses an aluminum hat section to reduce rotating mass while the directional slotted disc surface evacuates gases and debris for consistent friction. This kit maintains compatibility with OEM master cylinders and ABS systems while requiring 18-inch or larger wheels for caliper clearance.