Ksport BKVW231-445SO DualComp Rear 4-Piston Big Brake Kit with 14 in. Slotted Rotors

The Ksport BKVW231-445SO DualComp Big Brake Kit is a complete, all-in-one dual-function brake upgrade engineered for drivers who demand independent foot brake and handbrake performance from a single caliper assembly. Designed with drifting and rally racing in mind, this rear big brake kit delivers race-proven stopping power in a straightforward bolt-on package.

Innovative DualComp 4-Piston Caliper System:

• Single 4-piston caliper with a split-function design — 2 pistons dedicated to the foot brake and 2 pistons dedicated to the handbrake
• Each braking circuit operates fully independent on its own hydraulic system for precise, isolated brake control
• Formula Drift legal configuration — tested and proven on drift and rally circuits
• Suitable for use with 18-inch wheels and above

Lightweight Two-Piece Floating Rotor:

• 356mm (14-inch) slotted rotor for aggressive heat dissipation and consistent bite
• Two-piece rotor construction commonly weighs up to 50% less than OEM rotors of equivalent size
• Lightweight center bell crafted from 6061-T6 aircraft-grade aluminum reduces rotational mass for quicker brake response
• Floating outer ring expands and contracts independently from the center section, significantly reducing the risk of rotor warping under sustained heat
• Aluminum center section acts as an effective heat sink, channeling heat away from the rotor to the surrounding air and hub assembly

Premium Supporting Components:

• CNC-machined carbon steel caliper brackets allow the oversized calipers to bolt directly to OEM caliper bracket locations — no vehicle modifications required
• Polished titanium handbrake cylinder and lever included for improved feel and driving control
• D.O.T.-compliant stainless-steel braided brake lines resist expansion under pressure for a firmer, more responsive pedal feel
• NAOC ceramic brake pads included — optimal operating range of 194°F–1,022°F, reduced brake dust, and minimized rotor wear

Complete Kit Includes:

• 4-Piston DualComp Calipers
• 14 in. Two-Piece Floating Slotted Brake Disc
• NAOC Ceramic Brake Pads
• Titanium Handbrake Cylinder and Lever
• Stainless-Steel Braided Brake Lines
• CNC Caliper Brackets and All Required Hardware

The Ksport DualComp Big Brake Kit is built to order and backed by a 12-month manufacturer's warranty covering defects. Minimal tools are required for installation, with no vehicle modifications needed in most applications.