Ksport BKAU320-621CO Big Brake Kit Floating Rotor 4, 6, or 8 Piston Caliper

The Ksport BKAU320-621CO Big Brake Kit delivers a significant upgrade in stopping performance over the factory brake system. Built around a 2-piece floating rotor design, this kit reduces both rotating and unsprung weight while allowing the outer disc to shift slightly for better self-centering in the caliper — lowering brake drag and improving pad contact across the full braking surface. The floating disc construction also prevents thermal stresses from warping the disc or cupping the braking surface under extreme heat.

Caliper Construction:

• Available in 4, 6, or 8 piston opposed-piston configurations to suit your performance requirements
• CNC machined from aircraft-grade billet aluminum in a one-piece construction — no casting, no welding — for perfectly uniform wall thickness and elimination of weak points
• Differential bore configuration for optimized pad pressure and even wear across the brake pad face
• Weighs just over 5 lbs. per caliper, offering significant unsprung weight savings over OEM
• Machined-in protection grooves for bridge tube security
• Aluminum pistons with high-temperature seals for superior heat resistance
• Stainless-steel brake pad wear plates standard on every caliper
• Opposed piston design greatly improves pad wear consistency and caliper rigidity versus OEM floating caliper designs

Rotor Options & Technology:

• Cross-drilled rotors — run cooler and are recommended for daily-driven street applications
• Slotted rotors — unique slot geometry expels gas and pad debris faster than conventional designs, reducing brake noise; recommended for track and performance use
• Every rotor is heat treated and precision balanced before shipment for consistent, vibration-free performance

Additional Kit Features:

• D.O.T.-compliant stainless-steel braided brake lines — stop expansion under pressure, delivering a firmer pedal feel and quicker response versus OEM rubber lines
• CNC machined carbon steel caliper brackets designed for a direct bolt-on fit to the OEM caliper mounting location
• Designed for installation with minimal tools required in most applications — no permanent vehicle modifications needed
• All OEM ABS systems remain fully functional with this brake kit
• Backed by Ksport's 12-month manufacturer defect warranty

Engineered for both spirited street driving and track use, the Ksport BKAU320-621CO big brake kit delivers the stopping power, heat management, and pedal feel that performance driving demands.