Ksport BKSB090-621CO Procomp Big Brake Kit Floating Rotor 6-Piston 12 in. Cross Drilled

The Ksport BKSB090-621CO Procomp Big Brake Kit delivers a significant upgrade in stopping performance, featuring a full-floating two-piece rotor design with your choice of 4, 6, or 8 piston caliper configuration. Engineered to dramatically reduce brake fade and continuously refresh the pad surface under hard braking, this kit is purpose-built for drivers who demand more from their braking system—whether on the street or track.

Floating Rotor Design:

• Two-piece floating disc assembly reduces both rotating and unsprung weight
• Floating outer rotor section shifts slightly as needed for better self-centering in the caliper
• Prevents thermal stresses from warping the disc or cupping the braking surface under extreme heat
• Unique slot pattern expels gas and pad debris faster than conventional rotor designs, reducing braking noise
• Every rotor is heat treated and balanced before shipment for optimal performance

Caliper Construction:

• CNC machined from a single solid billet of aircraft-grade aluminum — not cast or welded
• One-piece construction provides perfectly even wall thickness and eliminates weak points
• Lightweight design at just over 5 lbs. each — up to 4x lighter than OEM calipers
• Differential bore configuration with machined-in protection grooves for bridge tubes
• Opposed piston design greatly improves pad wear and caliper rigidity over OEM
• Aluminum pistons with high-temperature seals for superior heat resistance
• Stainless steel brake pad wear plates standard on every caliper

Brake Lines & Hardware:

• D.O.T. compliant stainless-steel braided brake lines included
• Stainless lines resist expansion under pressure for quicker pedal response and firmer feel
• CNC machined carbon steel caliper brackets allow direct bolt-on fitment at the OEM bracket location

Rotor Style Options:

• Cross Drilled: Runs cooler — recommended for daily driven street vehicles
• Slotted: Superior heat and gas dispersion — recommended for track and performance use

All Ksport Big Brake Kits are backed by a 12-month warranty covering manufacturer defects. OEM ABS systems remain fully functional with this brake kit installed. Caliper finish options include standard painted colors (Orange, Red, Black, Yellow) as well as premium anodized and high-polish upgrades.