Ksport BKAC040-434CO DualComp Rear Big Brake Kit 4-Piston 13 in. Drilled Rotors

The Ksport BKAC040-434CO DualComp Big Brake Kit is a complete rear brake upgrade engineered specifically for high-performance driving, drifting, and rally racing applications. This innovative system integrates both foot brake and handbrake functions into a single, compact 4-piston caliper assembly, delivering a clean, purpose-built solution for competition and performance street use.

Dual-Function 4-Piston Caliper Design:

• 4-pot caliper with 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
• Formula Drift legal big brake kit
• Rear-mount position with a 330mm (13 in.) drilled floating rotor
• Compatible with 17-inch wheels and larger

Two-Piece Floating Rotor Technology:

• Lightweight two-piece rotor construction weighs up to 50% less than OEM one-piece rotors of the same size
• Center hat crafted from 6061-T6 aircraft-grade aluminum for reduced rotational mass and faster brake response
• Outer rotor ring floats independently, greatly reducing warping risk from heat buildup
• Aluminum center acts as a heat sink, channeling thermal energy away from the rotor and hub assembly

Complete Bolt-On Kit Includes:

• DualComp 4-piston calipers
• Floating drilled brake disc (330mm / 13 in.)
• Brake pads
• Handbrake hardware
• All required installation hardware

The DualComp system is designed for straightforward installation with minimal tools required in most applications and no vehicle modifications needed. Note: The OEM handbrake will not function after installation. Ksport Big Brake Kits are built to order.