Ksport BKMZ300-435SO DualComp Rear 4-Piston Big Brake Kit 13 in. Slotted Rotors

The Ksport BKMZ300-435SO DualComp Big Brake Kit is a complete rear brake upgrade engineered for high-performance driving, drifting, and rally racing. This innovative system features a single 4-piston caliper that serves dual functions: two pistons dedicated to the foot brake and two pistons dedicated to the handbrake, each operating independently on its own hydraulic circuit for precise, reliable control.

Key Features:

• Dual-function 4-piston caliper — foot brake and handbrake circuits fully independent of each other
• 13-inch (330mm) slotted floating brake rotor for improved heat dissipation and consistent fade-free stopping power
• Two-piece rotor design with 6061-T6 aircraft-grade aluminum center section reduces rotational mass by up to 50% compared to OEM one-piece rotors
• Independent rotor expansion and contraction minimizes warping from heat buildup
• Aluminum center section acts as an effective heat sink, transferring heat away from the rotor faster
• Formula Drift legal — tested and proven on competitive drift and rally circuits
• Suitable for use with 17-inch wheels and larger
• Complete bolt-on kit — no vehicle modifications required in most applications

Kit Includes:

• 4-Piston DualComp Caliper(s)
• Floating Brake Disc (13 in. / 330mm Slotted)
• Performance Brake Pads
• Handbrake hardware
• All required installation hardware

Specifications:

• Rotor Diameter: 330mm / 13 in.
• Rotor Style: Slotted
• Caliper Type: 4-Piston (DualComp)
• Position: Rear

The Ksport DualComp system delivers an elite-level braking solution for performance and competition builds, combining serious stopping force with an integrated handbrake solution in a single streamlined package.