Ksport BKVW041-434SO DualComp Rear 4-Piston Big Brake Kit with 13 in. Slotted Rotors

The Ksport BKVW041-434SO DualComp Big Brake Kit is a complete rear brake upgrade engineered for drivers who demand independent foot brake and handbrake control from a single, compact caliper. Designed with drifting and rally racing in mind, this kit delivers motorsport-grade stopping performance in a clean, bolt-on package.

Dual-Function 4-Piston Caliper System:

• Single 4-piston caliper design — 2 pistons dedicated to the foot brake circuit and 2 pistons dedicated to the handbrake circuit, each running independently on its own hydraulic system
• Formula Drift legal — tested and proven on competitive drift and rally circuits worldwide
• Appropriate for 17-inch wheels and above

Two-Piece Floating Rotor Technology:

• 330mm (13 in.) slotted rotor — slotted design recommended for track and performance driving applications
• Two-piece floating rotor construction allows the outer ring to expand and contract independently from the aluminum center bell, dramatically reducing the risk of heat-induced warping
• Rotor center sections crafted from 6061-T6 aircraft-grade aluminum for reduced rotational mass and superior heat dissipation
• Rotors commonly weigh up to 50% less than OEM one-piece rotors of equivalent size

What's Included:

• 4-piston DualComp calipers (pair)
• Two-piece floating slotted brake discs
• High-performance brake pads
• Handbrake mechanism and all required mounting hardware

Installation & Warranty:

• Bolt-on fitment — no vehicle modifications required in most applications
• Minimal tools needed for installation
• Backed by Ksport's 12-month warranty covering manufacturer defects

Important Note: The OEM handbrake will not function with this kit installed — the included Ksport handbrake replaces it. This kit is designed for 2WD vehicles only unless otherwise stated. Ksport Big Brake Kits are built to order.