Ksport BKVW052-435CO DualComp Rear 4-Piston Big Brake Kit with 13 in. Rotors

The Ksport DualComp Big Brake Kit is a complete, bolt-on rear brake upgrade engineered specifically for drifting and rally racing applications. At the heart of this system is an innovative single 4-piston caliper that integrates two separate braking circuits into one compact unit — 2 pistons dedicated to the foot brake and 2 pistons dedicated to the handbrake, each operating independently on its own hydraulic system.

Key Features:

• Dual-circuit 4-piston caliper — independent foot brake and handbrake circuits in a single caliper body
• 330mm (13 in.) floating two-piece cross-drilled rotor — lightweight fade-free performance
• 6061-T6 aircraft-grade aluminum rotor hat — reduces rotational mass by up to 50% compared to OEM one-piece rotors
• Polished titanium handbrake cylinder and lever — enhances feel and aids in precise throttle and steering control
• CNC-machined carbon steel caliper brackets — allows the oversized caliper to bolt directly to the OEM bracket location with no cutting or welding
• D.O.T.-compliant stainless-steel braided brake lines — included standard
• Formula Drift legal — tested and proven on rally and drift circuits worldwide
• Suitable for 17-inch wheels and larger

The floating two-piece rotor design allows the outer iron ring to expand and contract independently from the aluminum center hat, dramatically reducing the risk of warping under sustained heat loads. The aluminum center section also acts as an efficient heat sink, dissipating thermal energy away from the rotor and hub assembly more effectively than OEM steel rotors.

This kit ships complete and ready to install — everything needed is included: caliper, floating brake disc, brake pads, handbrake hardware, caliper brackets, and all required fasteners. Minimal tools are required and no permanent vehicle modifications are needed in most applications. The DualComp Big Brake Kit is backed by a 12-month warranty covering manufacturer defects.