Ksport BKIN310-445SO DualComp Rear 4-Piston Big Brake Kit with 14 in. Slotted Rotors

The Ksport DualComp Big Brake Kit is a high-performance, all-in-one dual caliper braking solution engineered for serious motorsport and performance street applications. Designed with drifting and rally racing in mind, this kit delivers precise, independent control over both the foot brake and handbrake through a single, compact 4-piston caliper — eliminating the need for separate caliper assemblies.

The DualComp system splits caliper function intelligently: 2 pistons dedicated to the foot brake and 2 pistons dedicated to the handbrake, with each circuit running fully independent of the other. This design gives drivers consistent, fade-free modulation whether executing a high-speed stop or a precision handbrake entry on the track.

Key Features:

• 4-Piston Dual-Function Caliper — Single caliper handles both foot brake and handbrake circuits independently
• 14-Inch (356mm) Slotted Floating Rotor — Lightweight two-piece design reduces rotational mass for improved response and fade resistance
• 6061-T6 Aircraft-Grade Aluminum Rotor Hat — Can weigh up to 50% less than OEM rotors of the same size; acts as a heat sink to dissipate thermal buildup
• Polished Titanium Handbrake Cylinder and Lever — Enhances feel and driving control in motorsport applications
• CNC Machined Carbon Steel Caliper Brackets — Bolt directly to OEM caliper bracket locations for clean, modification-free installation
• D.O.T.-Compliant Stainless Steel Braided Brake Lines — Included as standard for reliable hydraulic performance
• Formula Drift Legal — Tested and approved for competition use on drift and rally circuits
• Compatible with 18-inch wheels and above

What's Included:

• 4-Piston DualComp Caliper(s)
• 14-inch Slotted Floating Brake Disc(s)
• Performance Brake Pads
• Polished Titanium Handbrake Cylinder and Lever
• CNC Caliper Brackets
• Stainless Steel Braided Brake Lines
• All required mounting hardware

The Ksport DualComp Big Brake Kit installs with minimal tools and requires no permanent vehicle modifications in most applications, making it one of the most practical performance brake upgrades available for drift, time attack, and rally-inspired builds.