Brembo 4K3.8039AZ GT Big Brake Kit Calipers Rotors - 4-Piston 380x34mm 2-Piece

The Brembo 4K3.8039AZ Gran Turismo (GT) Big Brake Kit is a complete high-performance braking upgrade engineered for drivers who demand superior stopping power on both street and track. Drawing on Brembo's decades of motorsport expertise — including Formula 1 and MotoGP development — this kit delivers a significant performance advantage over OEM braking systems.

Key Features:

• 4-Piston Opposed Aluminum Calipers: Rigid, lightweight aluminum construction with opposed pistons for even pad wear and precise brake modulation
• 380x34mm 2-Piece Composite Rotors: Larger rotor diameter increases thermal capacity and dramatically reduces brake fade under heavy use
• Directionally Vented Disc Design: Enhances airflow and cooling efficiency; available in cross-drilled or slotted finish to continuously clean the pad surface and dissipate heat and gases
• Exclusive Venting System: Improves cooling capacity and increases resistance to thermal-shock cracking by over 40% compared to standard designs
• High-Performance Brake Pads: Application-specific friction material included for optimized initial bite and consistent feel
• TÜV/DOT Homologated Metal-Braided Brake Hoses: Included for improved pedal feel and durability
• Brembo Engineered CNC Billet Caliper Adapters: All necessary mounting hardware included for straightforward installation
• Complete Axle Set: Kit covers a full axle — pre-assembled and ready to install out of the box

Calipers are available in signature red, black, or silver finish, each bearing the iconic Brembo logo for an unmistakable, high-performance aesthetic. The GT Big Brake Kit is the benchmark upgrade for enthusiasts seeking race-proven braking technology in a street-legal package.

Note: This system does not include OEM brake lines — factory lines are retained. Minimum wheel clearance required; verify caliper clearance before installation.