Ksport BKHD190-435SO DualComp Rear Big Brake Kit 4-Piston Caliper 13 in. Slotted Rotor

The Ksport DualComp Big Brake Kit is a performance-engineered, all-in-one rear brake upgrade designed with drifting and rally racing in mind. Unlike conventional brake setups, the DualComp system integrates a single 4-piston caliper that simultaneously handles both the foot brake and handbrake functions — with 2 pistons dedicated to each system, each operating fully independently on its own hydraulic circuit.

The kit features a 330mm (13 in.) two-piece slotted floating brake rotor with a lightweight center bell crafted from 6061-T6 aircraft-grade aluminum. This two-piece design allows the outer rotor ring to expand and contract independently from the center section, significantly reducing the risk of warping under extreme heat. The aluminum center section also acts as an effective heat sink, dissipating thermal energy away from the rotor and hub assembly faster than traditional one-piece designs. Ksport DualComp rotors commonly weigh up to 50% less than OEM rotors of comparable size.

What's Included:

• 4-piston rear brake caliper (foot brake and handbrake integrated)
• Two-piece floating slotted brake disc (330mm / 13 in.)
• Performance brake pads
• Polished titanium handbrake cylinder and lever
• CNC machined carbon steel caliper mounting brackets
• D.O.T.-compliant stainless steel braided brake lines
• All required installation hardware

Key Features:

• Formula Drift legal big brake kit — tested and proven on rally and drift circuits
• Bolt-on installation — no vehicle modifications required in most applications; fits OEM caliper bracket location
• Compatible with 17-inch wheels and above
• Slotted rotor style recommended for track and performance driving use
• Fits 2WD vehicles only
• Backed by a 12-month warranty covering manufacturer defects

The Ksport DualComp Big Brake Kit delivers a significant brake system upgrade for drivers seeking dual-function performance braking in a single, compact, bolt-on package — purpose-built for competitive motorsport and high-performance street use.