Ksport BKTY261-621CO ProComp Big Brake Kit Floating Rotor 6-Piston Caliper Cross Drilled

The Ksport BKTY261-621CO ProComp Big Brake Kit delivers a significant upgrade in stopping power over the stock braking system. Engineered with advanced thermal management in mind, this kit dramatically reduces brake fade while continuously cooling and refreshing the brake pad contact surface during hard braking events. The bolt-on design requires minimal tools and no permanent vehicle modifications in most applications.

Lightweight One-Piece Billet Caliper

The opposed-piston caliper is CNC machined from aircraft-grade billet aluminum, weighing just over 5 lbs. each. The one-piece construction — machined from a single solid billet block rather than cast or welded — delivers perfectly uniform wall thickness throughout, eliminating weak points that can lead to fracturing or warpage under sustained stress. Machined-in protection grooves for the bridge tubes, aluminum pistons, high-temperature seals, and stainless-steel brake pad wear plates are all standard. The opposed-piston design significantly improves pad wear evenness and overall caliper rigidity compared to OEM floating-piston designs. Caliper options are available in 4, 6, or 8-piston configurations to suit your performance needs.

Two-Piece Floating Rotor Design

This kit features Ksport's two-piece floating disc assembly, which reduces both rotating and unsprung weight. The floating outer ring is designed to shift slightly under load, allowing for better self-centering within the caliper — reducing brake drag and promoting more even pad application. Critically, the floating design absorbs thermal stresses from extreme heat, preventing the disc from warping or developing a cupped braking surface. Every rotor is heat-treated and dynamically balanced before shipment.

Cross Drilled Rotors

This configuration (CO) features cross-drilled rotors, which dissipate heat and brake gases efficiently, helping the rotor run cooler during everyday driving. Cross-drilled rotors are the recommended choice for street and daily-driven vehicles. Ksport's proprietary slot pattern on the rotor surface also expels gas and pad debris faster than conventional designs, reducing braking noise in the process.

D.O.T.-Compliant Stainless-Steel Braided Brake Lines

Included stainless-steel braided brake lines are D.O.T. compliant and engineered to prevent hose expansion under pressure. This delivers a firmer, more responsive pedal feel compared to standard OEM rubber lines.

Key Features:

• Caliper options: 4, 6, or 8-piston opposed-piston aluminum calipers
• CNC machined from single-billet aircraft-grade aluminum — not cast or welded
• Caliper weight: just over 5 lbs. each
• Aluminum pistons with high-temperature seals and stainless-steel pad wear plates
• Two-piece floating disc assembly reduces rotating and unsprung weight
• Floating rotor design prevents heat-induced warping and surface cupping
• Cross-drilled rotor (CO) recommended for street and daily driving
• Proprietary slot pattern for faster gas and debris expulsion and reduced noise
• D.O.T.-compliant stainless-steel braided brake lines included
• Heat-treated and balanced rotors for consistent performance out of the box
• Bolt-on installation — no permanent vehicle modifications required in most applications
• Backed by Ksport's 12-month manufacturer defect warranty

Whether you're building a performance street car or a track-day machine, the Ksport ProComp Big Brake Kit provides a substantial and measurable improvement in braking confidence, fade resistance, and pedal feel over the factory system.