Ksport BKNS090-611CO Procomp Big Brake Kit with Floating Rotor – 4, 6, or 8 Piston Caliper

The Ksport BKNS090-611CO Procomp Big Brake Kit is a sophisticated bolt-on brake upgrade engineered to deliver dramatically enhanced stopping power and sustained fade resistance under high-heat conditions. Featuring a 2-piece floating rotor assembly and your choice of 4, 6, or 8 piston caliper configuration, this kit is a direct replacement designed to install with minimal tools and no vehicle modifications required in most applications.

Caliper Construction:

• One-piece CNC-machined billet construction from aerospace-grade aluminum — no casting or welding — for perfectly uniform wall thickness and elimination of weak points
• Differential bore configuration for optimized pad clamping force across all pistons
• Weighs just over 5 lbs. each, offering significant unsprung weight savings over OEM calipers
• Machined-in protection grooves for bridge tube durability
• Aluminum pistons with high-temperature seals for superior heat resistance and uncompromised operation
• Stainless-steel brake pad wear plates standard on every caliper
• Opposed-piston caliper design improves pad wear evenness and caliper rigidity versus OEM

Floating Rotor Design:

• 2-piece floating disc assembly reduces both rotating and unsprung weight
• Floating outer ring shifts slightly as needed for better self-centering in the caliper, lowering brake drag and promoting more even pad application
• Floating design absorbs thermal stress, preventing disc warping or braking surface cupping under extreme heat
• Unique slot pattern rapidly expels gas and pad debris while significantly reducing brake noise versus conventional slotted designs
• Every rotor is heat treated and precision balanced prior to shipment
• Cross-drilled rotors run cooler and are recommended for daily-driven street use
• Slotted rotors offer superior gas and debris evacuation and are recommended for track-focused applications

Brake Lines & Hardware:

• D.O.T.-compliant stainless-steel braided brake lines standard in all kits
• Stainless construction prevents hose expansion under pressure, delivering a firmer pedal feel and quicker response versus OEM rubber lines
• All OEM ABS systems remain fully functional with this kit installed

Included in the Kit:

• Multi-piston caliper(s) in your selected piston configuration (4, 6, or 8 piston)
• 2-piece floating brake disc(s)
• NAOC Ceramic brake pads (optimal operating range: 194°F – 1,022°F)
• Stainless-steel braided brake lines and all required mounting hardware

All Ksport Big Brake Kits are covered by a 12-month manufacturer's defect warranty. Kits are built to order — please allow approximately 4–6 weeks for production and delivery.