Ksport BKHD270-621CO Procomp Big Brake Kit 6 Piston Caliper 12 in. Cross Drilled Floating Rotor

The Ksport BKHD270-621CO Procomp Big Brake Kit delivers a significant upgrade in stopping performance over the OEM brake system. Engineered with advanced brake technology, this kit dramatically reduces brake fade while continuously cooling and refreshing the brake pad surface during sustained braking. The system is designed as a straightforward bolt-on upgrade requiring minimal tools in most applications.

Aircraft-Grade Billet Caliper Construction:

The one-piece caliper is CNC machined from aircraft-quality billet aluminum rather than being cast or welded, providing perfectly even thickness and strength throughout the caliper body. This construction eliminates weak points that can lead to fracturing or warpage over time. Each caliper weighs just over 5 lbs and features a differential bore configuration, machined-in bridge tube protection grooves, aluminum pistons, high-temperature seals, and stainless-steel brake pad wear plates as standard. The opposed piston caliper design significantly improves pad wear and caliper rigidity compared to OEM.

Two-Piece Floating Rotor Design:

This kit features a 12-inch (304mm) two-piece disc assembly that reduces both rotating and unsprung weight. The floating rotor outer section is designed to shift slightly as needed, allowing for better self-centering in the caliper, which lowers brake drag and delivers more even brake application. The floating design also eliminates thermal stress warping and braking surface cupping under extreme heat conditions. Every rotor is heat treated and balanced before shipment to ensure optimal performance.

Cross Drilled Rotor Advantages:

The cross drilled rotor style dissipates heat and expels brake gases efficiently, making it the recommended choice for daily driven vehicles. Ksport's unique slot pattern further reduces braking noise and evacuates gas and pad debris faster than conventional designs.

DOT-Compliant Stainless-Steel Brake Lines:

D.O.T.-compliant stainless-steel braided brake lines are included as standard equipment. Unlike rubber OEM lines, stainless-steel lines resist expansion under pressure, delivering a quicker pedal response and a firmer, more confident pedal feel.

Key Features:

• 6 piston opposed aluminum caliper — CNC machined from aircraft-grade billet aluminum
• Caliper weighs just over 5 lbs each — significant weight reduction over OEM
• Differential bore caliper configuration for optimized pad contact and wear
• Aluminum pistons with high-temperature seals and stainless-steel pad wear plates
• 12 in. (304mm) two-piece floating cross drilled rotor — reduces rotating and unsprung weight
• Floating disc design prevents thermal warping and braking surface cupping
• Heat treated and balanced rotors for consistent, vibration-free performance
• D.O.T.-compliant stainless-steel braided brake lines included
• CNC machined carbon steel caliper brackets for direct OEM bolt-on fitment
• Compatible with 4, 6, or 8 piston caliper configurations (see variant options)
• OEM ABS systems remain fully functional
• 12-month manufacturer defect warranty

This big brake kit is built to order. Cross drilled rotors are recommended for daily driven applications due to their superior heat dissipation. For dedicated track use, a slotted rotor variant is also available.