Ksport BKMZ250-445SO DualComp Rear Big Brake Kit 4-Piston 14 in. Slotted Rotors

The Ksport BKMZ250-445SO DualComp Big Brake Kit is a complete rear big brake upgrade engineered for high-performance street and motorsport applications. Designed with drifting and rally racing in mind, the DualComp system integrates a single 4-piston caliper that serves dual functions — 2 pistons dedicated to the foot brake and 2 pistons dedicated to the handbrake — with each circuit operating fully independent on its own hydraulic system.

Key Features:

• Dual-function 4-piston caliper — independent foot brake and handbrake circuits in a single housing
• 14-inch (356mm) two-piece floating slotted rotor — up to 50% lighter than OEM rotors of equivalent size
• 6061-T6 aircraft-grade aluminum rotor center hat — reduces rotational mass for sharper brake response
• Floating rotor design — outer ring expands and contracts independently to resist heat-induced warping
• Polished titanium handbrake cylinder and lever — enhances feel and precision handbrake control
• CNC-machined carbon steel caliper brackets — bolt directly to the OEM caliper bracket location with no modifications required
• D.O.T.-compliant stainless steel braided brake lines — included as standard
• Formula Drift legal — proven on professional drift and rally circuits
• Suitable for use with 18-inch wheels and larger

What's Included:

• 4-Piston DualComp caliper(s)
• Two-piece floating slotted brake disc
• Performance brake pads
• Polished titanium handbrake cylinder and lever
• CNC-machined caliper brackets
• D.O.T.-compliant stainless steel braided brake lines
• All required installation hardware

Specifications:

• Rotor Diameter: 356 mm (14 in.)
• Rotor Style: Slotted
• Caliper Type: 4-Piston
• Position: Rear

This bolt-on big brake kit installs with minimal tools and requires no permanent vehicle modifications in most applications. The DualComp system delivers fade-free stopping power on track while remaining comfortable and reliable for street use.