Ksport BKIN420-831SO Procomp Big Brake Kit 13 in. Slotted Floating Rotor 4, 6, or 8 Piston

The Ksport BKIN420-831SO Procomp Big Brake Kit is a sophisticated bolt-on brake upgrade engineered to deliver maximum stopping power under sustained high-heat conditions. Designed with advanced brake technology, this kit significantly reduces brake fade while continuously cooling and refreshing the brake pad surface during hard braking — making it equally capable on street and track.

Billet Aluminum Caliper Construction:

• Available in 4, 6, or 8 piston caliper configurations to suit your performance needs
• One-piece caliper CNC machined from aircraft-grade billet aluminum — lightweight, corrosion-resistant, and exceptionally rigid
• Differential bore configuration for optimized pad contact and even wear
• Each caliper weighs just over 5 lbs. for maximum unsprung weight reduction
• Machined-in protection grooves for bridge tube durability
• Aluminum pistons with high-temperature seals for superior heat resistance
• Stainless steel brake pad wear plates standard on every caliper
• Opposed piston caliper design delivers improved pad wear and caliper rigidity over OEM

Floating Rotor Design:

• 2-piece floating disc assembly reduces both rotating and unsprung weight
• Floating disc construction absorbs thermal expansion, preventing warping and braking surface cupping under extreme heat
• Unique slot design expels gas and pad debris faster than conventional slot patterns while minimizing braking noise
• Every rotor is heat treated and balanced prior to shipment for consistent, reliable performance
• Stainless steel braided brake lines prevent hose expansion under pressure for firm, consistent pedal feel

Rotor Style Guidance:

• Cross-drilled rotors run cooler and are recommended for daily-driven street vehicles
• Slotted rotors are ideal for vehicles that see frequent track use

All Ksport Big Brake Kits are backed by a 12-month manufacturer's defect warranty and are compatible with OEM ABS systems. Minimal tools are required for installation in most applications, and CNC machined carbon steel caliper brackets are included to ensure a direct bolt-on fit to your OEM bracket location.