Ksport BKMZ010-445CO DualComp Rear 4-Piston Big Brake Kit with 14 in. Drilled Rotors

The Ksport BKMZ010-445CO DualComp Big Brake Kit is a complete rear brake upgrade engineered for drivers who demand independent foot brake and handbrake control from a single caliper assembly. Designed with drifting and rally racing in mind, this kit delivers race-proven stopping power in a clean, bolt-on package.

Innovative Dual-Function Caliper Design:

At the heart of the DualComp system is a single 4-piston caliper that divides its function between two independent circuits — 2 pistons dedicated to the foot brake and 2 pistons dedicated to the handbrake. Each circuit operates completely independently on its own hydraulic system, giving drivers precise, separate control over service braking and handbrake engagement.

Key Features:

• 4-piston caliper with split foot brake and handbrake circuits — each fully independent
• Floating brake disc — two-piece rotor design reduces rotational mass and resists heat-induced warping
• 6061-T6 aircraft-grade aluminum rotor center sections for lightweight performance and effective heat dissipation
• CNC machined carbon steel caliper brackets allow direct bolt-on fitment at the OEM caliper bracket location
• Polished titanium handbrake cylinder and lever included for premium feel and improved driving control
• D.O.T. compliant stainless-steel braided brake lines standard — reduce expansion under pressure for a firmer, more responsive pedal feel
• NAOC ceramic brake pads included — optimized for street and occasional track use with reduced dust and noise
• Rotor diameter: 356 mm (14 in.) | Rotor style: Drilled | Position: Rear
• Formula Drift legal — tested and proven on drift and rally racing circuits
• Appropriate for 18-inch wheels and above

The DualComp system installs with minimal tools and requires no vehicle modifications in most applications, making it one of the most accessible race-grade brake upgrades available. The two-piece floating rotor design can weigh up to 50% less than OEM rotors of the same size, significantly reducing unsprung and rotational mass. Kit is built to order.

What's Included:

• 4-piston DualComp caliper(s)
• Floating drilled brake disc(s)
• Brake pads
• Polished titanium handbrake cylinder and lever
• CNC machined carbon steel caliper bracket(s)
• D.O.T. compliant stainless-steel braided brake lines
• All required installation hardware