Ksport BKMZ330-445SO DualComp Rear Big Brake Kit Slotted Rotor - 4-Piston 330mm

The Ksport BKMZ330-445SO DualComp Big Brake Kit is a complete, rear-position dual-caliper brake upgrade engineered for high-performance driving disciplines including drifting and rally racing. At the heart of the system is a single 4-piston caliper with a split-function design: two pistons dedicated to the foot brake circuit and two pistons dedicated to the handbrake circuit, each operating independently on its own hydraulic system for precise, isolated control.

Key Features:

• Dual-function 4-piston caliper — 2 pots for foot brake, 2 pots for handbrake, fully independent circuits
• 330mm (13 in.) slotted floating brake disc — lightweight two-piece rotor design for fade-free performance
• 6061-T6 aircraft-grade aluminum rotor center hat — reduces rotational mass and dissipates heat efficiently
• Rotor weighs up to 50% less than OEM rotors of equivalent size
• Polished titanium handbrake cylinder and lever included for improved feel and driver control
• CNC machined carbon steel caliper brackets allow direct bolt-on installation at the OEM caliper bracket location
• D.O.T.-compliant stainless-steel braided brake lines included standard
• Formula Drift legal — race-proven on drift and rally circuits
• Compatible with 18-inch wheels and above
• Designed for 2WD vehicles only

The DualComp system arrives as a complete bolt-on kit requiring minimal tools and no vehicle modifications in most applications. Everything needed for installation is included: calipers, floating brake disc, brake pads, handbrake hardware, caliper brackets, braided brake lines, and all required fasteners. The independently expanding outer rotor ring minimizes the risk of warping under heat buildup, while the aluminum center sections act as heat sinks to move thermal energy away from the braking surface quickly.