Ksport BKMZ110-445CO DualComp Rear 4-Piston Big Brake Kit with 14 in. Cross-Drilled Rotors

The Ksport BKMZ110-445CO DualComp Big Brake Kit is a complete rear brake upgrade engineered for high-performance driving. Developed with drifting and rally racing in mind, the DualComp system features an innovative single 4-piston caliper design that handles both the foot brake and handbrake in one compact unit — with 2 pistons dedicated to each function, each operating on its own fully independent hydraulic circuit.

The kit ships complete and ready to bolt on, requiring minimal tools and no permanent vehicle modifications in most applications. Everything needed for a full installation is included right in the box.

What's Included:

• 4-piston rear brake calipers
• 14 in. (356 mm) cross-drilled floating brake disc
• High-performance brake pads
• Polished titanium handbrake cylinder and lever
• CNC-machined carbon steel caliper brackets
• D.O.T.-compliant stainless-steel braided brake lines
• All required hardware

Key Features:

• Dual-function 4-piston caliper: Two pistons serve the foot brake; two serve the handbrake — each on an independent hydraulic system for precise, isolated control
• Lightweight two-piece floating rotors: Cross-drilled 14 in. rotors commonly weigh up to 50% less than OEM rotors of the same size, reducing rotational mass for faster, more responsive braking
• 6061-T6 aircraft-grade aluminum rotor centers: Aluminum center bells act as heat sinks, dissipating heat away from the rotor and hub assembly to reduce fade
• Cross-drilled rotor style: Drilled rotors run cooler than slotted, making them well-suited for street-driven vehicles
• Polished titanium handbrake hardware: Adds a premium appearance while improving handbrake modulation and feel
• CNC-machined carbon steel brackets: Allow the oversized calipers to mount directly to the OEM caliper bracket location without cutting or drilling
• Stainless-steel braided brake lines: D.O.T. compliant lines resist expansion under pressure for a firmer, more consistent pedal feel
• Formula Drift legal: Certified for use in Formula Drift competition
• Compatible with 18-inch wheels and larger

The DualComp system is the ideal big brake upgrade for enthusiasts who demand independent foot brake and handbrake control from a single caliper — without sacrificing ease of installation or street drivability. Note: The OEM handbrake will not function after installation; the included DualComp handbrake assembly replaces it entirely.