Ksport BKMZ100-445CO DualComp Rear 4-Piston Big Brake Kit with 14 in. Drilled Rotors

The Ksport BKMZ100-445CO DualComp Big Brake Kit is a complete rear brake upgrade engineered for drifting and rally racing applications. This all-in-one dual caliper system features a single 4-piston caliper with a unique split-function design: two pistons dedicated to the foot brake and two pistons dedicated to the handbrake, each operating independently on its own hydraulic circuit.

The DualComp system ships as a complete bolt-on kit with every component needed for installation. The rear-mounted kit uses a 14-inch (356mm) drilled floating brake disc paired with a lightweight two-piece rotor design. The center section is crafted from 6061-T6 aircraft-grade aluminum, significantly reducing rotational mass for sharper brake response and better heat management. Because the outer rotor ring floats independently from the aluminum center, heat-induced warping is dramatically reduced compared to conventional one-piece OEM rotors.

Key Features:

• Dual-function 4-piston caliper — 2 pistons for foot brake, 2 pistons for handbrake, each on independent hydraulic circuits
• 14-inch (356mm) drilled floating brake disc for fade-free performance under sustained heat
• Two-piece rotor construction — aluminum center hub weighs up to 50% less than equivalent OEM rotors
• Polished titanium handbrake cylinder and lever included for precise handbrake control
• CNC-machined carbon steel caliper brackets for direct bolt-on fitment to OEM caliper mounting locations
• D.O.T.-compliant stainless steel braided brake lines included standard
• Formula Drift legal big brake kit
• Complete kit includes: calipers, floating brake disc, brake pads, handbrake hardware, and all required mounting hardware

Designed as a true bolt-on upgrade, the Ksport DualComp system requires minimal tools and no permanent vehicle modifications in most applications. This kit is intended for 2WD vehicles only and is suitable for use with 17-inch wheels and larger.