Brembo 4KC.9015AX GT Big Brake Kit High-Performance Upgrade

The Brembo 4KC.9015AX is a Gran Turismo (GT) Big Brake Kit engineered for drivers who demand superior stopping power on both the street and track. Drawing on Brembo's decades of motorsport expertise, this kit upgrades the entire brake corner with precision-matched components designed specifically for high-performance and track-day applications.

Key Features:

• High-Performance Aluminum Calipers: Radially mounted with opposed pistons for even brake force distribution, greater stiffness, and uniform pad wear
• Upsized Ventilated Brake Disc: One-piece or composite disc with slotted or drilled finish to continuously refresh the pad surface, eliminate debris, and ensure a stable friction coefficient
• Exclusive Venting System: Optimized cooling increases resistance to thermal shock and dramatically reduces brake fade under demanding conditions
• High-Performance Brake Pads: Included pads are optimized to deliver maximum grip in a wide range of temperatures and driving conditions
• Stainless Steel Braided Brake Lines: TÜV/DOT-homologated metal-braided hoses provide precise pedal feel and long-term durability
• Complete Hardware Kit: Includes all necessary adapters, mounting hardware, and fasteners for a direct-bolt installation
• ABS & Stock Master Cylinder Compatible: Fully compatible with the vehicle's original ABS and traction control systems — no master cylinder changes required
• Brembo Check Authenticity: Includes a unique QR code label for verification via the Brembo Check app to confirm product authenticity

Brembo GT Big Brake Kits are sold as axle sets and are designed to bolt directly onto the vehicle's original suspension geometry. The large-diameter disc and caliper combination delivers noticeably more immediate and decisive braking action that remains consistent even during extended track sessions. Calipers are available in signature Brembo colors to complement any build.