Brembo 4K3.8044AX Gran Turismo Big Brake Kit with 4-Piston Calipers

The Brembo 4K3.8044AX is a Gran Turismo (GT) Big Brake Kit engineered by Brembo — the globally recognized leader in high-performance braking systems. Developed from decades of motorsport expertise, this complete kit delivers a significant upgrade in stopping power, pedal feel, and thermal management over factory brake components.

Key Features:

• 4-Piston Fixed Monobloc Aluminum Calipers — machined from a single billet of cast aluminum for outstanding rigidity and minimal deformation under heavy braking loads
• High-Carbon Alloy Rotors — large-diameter discs with an exclusive venting system that improves cooling capacity and increases resistance to thermal cracking
• High-Performance Brake Pads — included as standard, matched specifically to the caliper and rotor combination for optimum friction performance in both street and track conditions
• Stainless Steel Braided Brake Lines — TUV/DOT-homologated lines for improved pedal firmness and long-term durability
• CNC Billet Caliper Adapters & All Hardware — precision-machined brackets and all necessary fasteners included for a complete, bolt-on installation
• Fade Resistance — engineered to handle extreme heat and repeated high-speed stops with minimal brake fade
• Corrosion Protection — calipers feature protective coating to ensure long-term durability and appearance

The Brembo GT Big Brake Kit system is designed and tested for both track-day enthusiasts and performance street drivers who demand the highest standard of braking confidence. The complete kit arrives ready for installation, reducing brake bias inconsistency and improving tire contact patch performance under extreme deceleration. Backed by Brembo's two-year warranty against manufacturing defects.