Brembo 4K3.8041AX Gran Turismo Big Brake Kit Cross-Drilled - 4-Piston

The Brembo 4K3.8041AX is a Gran Turismo (GT) Big Brake Kit featuring Brembo's signature 4-piston fixed caliper architecture paired with cross-drilled two-piece floating rotors. Engineered from decades of motorsport-derived technology, this kit delivers a substantial upgrade in braking performance, pedal feel, and fade resistance over stock brake systems.

Key Features:

• 4-Piston Fixed Aluminum Calipers – Monoblock or fixed-mount cast aluminum construction for outstanding rigidity and consistent clamping force under extreme braking conditions
• Cross-Drilled Two-Piece Floating Rotors – The AX suffix denotes Brembo's cross-drilled rotor finish; two-piece floating design reduces unsprung weight and resists thermal warping
• High-Performance Brake Pads Included – Brembo-spec friction material engineered to match the caliper and rotor for optimized bite, modulation, and wear characteristics
• Stainless Steel Braided Brake Lines – Improve pedal firmness and fluid response compared to OEM rubber hoses
• CNC-Machined Caliper Adapters & Hardware – Precision-fit brackets and all necessary mounting hardware included for a complete bolt-on installation
• Improved Heat Dissipation – Cross-drilled rotor surface helps vent heat, eliminate brake dust and gases, and maintain consistent stopping power during repeated hard stops
• Street and Track Capable – Designed for performance driving on public roads as well as track day use

Brembo GT Big Brake Kits are backed by a two-year limited warranty against manufacturing defects. The complete kit includes calipers, rotors, brake pads, braided brake lines, caliper adapters, and all necessary hardware — everything needed for a full corner brake upgrade.