Brembo 4KC.8039AZ Gran Turismo Big Brake Kit Caliper - 4-Piston

The Brembo 4KC.8039AZ is a Gran Turismo (GT) Big Brake Kit featuring 4-piston calipers engineered to deliver a significant upgrade in stopping power, pedal feel, and thermal management over stock braking systems. Built on decades of motorsport expertise — including Brembo's work in Formula 1 and MotoGP — this kit brings race-derived braking technology to the street and track.

Key Features:

• 4-Piston Monobloc Calipers: Machined from a single billet of cast aluminum for exceptional rigidity and minimal flex under heavy braking loads
• Anodized Finish (AZ): Corrosion-resistant anodized caliper finish for long-lasting durability and appearance
• Superior Heat Dissipation: Engineered rotor and caliper geometry promotes efficient cooling, reducing brake fade during repeated high-speed stops
• High-Performance Brake Pads Included: Race-influenced friction compounds provide strong initial bite, consistent modulation, and stability across a wide temperature range
• Improved Pedal Feel: Multi-piston caliper design ensures even pressure distribution across the pad surface for a firm, confidence-inspiring pedal
• Complete Kit: Includes calipers, rotors, brake pads, caliper mounting hardware, and all necessary installation components
• Brembo GT Pedigree: Designed and tested for both demanding track-day use and spirited street driving

The Brembo Gran Turismo Big Brake Kit (BBK) series is one of the most recognized performance brake upgrades available, trusted by enthusiasts and professional drivers alike. The 4KC.8039AZ delivers measurable improvements in braking distance, heat resistance, and overall braking confidence compared to factory brake systems.