
Street + track-day upgrade
Procomp
An application-specific axle kit with multi-piston calipers and two-piece rotors. Start here for a conventional big brake upgrade.
KSport braking systems
Compare KSport big brake kit systems, then match the exact kit to your vehicle, axle and wheel clearance.
Explore Big Brake Kits
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The Big Brake Kits guide
Start with how you use the car. Rotor size, caliper configuration and wheel clearance are application-specific.

Street + track-day upgrade
An application-specific axle kit with multi-piston calipers and two-piece rotors. Start here for a conventional big brake upgrade.
Larger hardware + floating rotors
Larger calipers, rotors and pads than Procomp, with full-floating two-piece rotors. Check the available configuration and wheel clearance.
Drift + rally
A rear four-piston caliper with separate foot-brake and hydraulic handbrake circuits. Choose it for a dedicated drift or rally setup.
Limited wheel clearance
A narrow, single-side three-piston front caliper for wheels with limited clearance. Confirm fit with the correct wheel template.
Photography shows representative hardware. Exact mounts, kit contents and options are confirmed on the application page.
Before you order
Brake kits are sold for a specific axle. Match the vehicle and front or rear position before choosing a kit.
Wheel diameter alone does not establish clearance. Confirm the rotor and caliper configuration using the application’s wheel template.
Review rotor style, caliper finish and pad choices on the exact application. A technician can help with the combination.
Keep your setup working
Replacement rotors, pads and calipers belong to the kit you already have. Lines and mounting hardware must match its specification.
Replacement 2-, 4-, and 8-piston calipers for KSport big brake kits. Match the caliper to the rotor size and axle of your existing kit.
Caliper brackets, center bells and mounting hardware for the exact system.
DOT-compliant stainless-steel braided brake lines, sold as a pair, for KSport big brake kits.
Replacement street (SC) and race (RC) pads for KSport big brake kits. Choose the pad that matches your caliper piston count and rotor size.
Match rotor size, style and axle to your existing KSport kit.
Talk through fitment, driving goals or replacement parts with KSport.
Ksport Big Brake Kits provide the ultimate in stopping power for your vehicle. Integrating new brake technology into the design of the kits allows for a system that highly reduces brake fade and continually cools and refreshes the brake pads surface under braking. These brake systems are designed for easy installation with minimal tools required (in most applications).
The ultimate in brake technology for your vehicle.
The Procomp Big Brake Kit is a sophisticated bolt-on brake upgrade designed to enhance brake power under sustained high-heat conditions. All calipers feature 1-piece construction from a solid billet of aircraft grade aluminum for lightweight, unparalleled strength and freedom from corrosion. Calipers also feature aluminum pistons that provide better heat resistance and uncompromised operation. The Procomp Big Brake system is designed for easy installation with minimal tools required in most applications.
Our most extreme brake upgrade, the Supercomp Big Brake Kit is designed to provide the highest level of stopping power. This sophisticated bolt-on brake upgrade features the same benefits of our Procomp kit but features larger calipers, rotors, and brake pads, as well as increased pistons and standard full-floating rotors for better self-centering in the caliper.
Designed with Drifting and Rally Racing in mind, the all new Ksport Dualcomp Big Brake Kit is the ultimate all-in-one Dual Caliper solution. This system utilizes a single 4 Pot caliper, with 2 Pots used for the foot brake and 2 Pots used for the handbrake - each runs independent from the other on its own system.
The popularity of aggressive fitting wheels on factory body vehicles has never been more popular than it is today. In most cases, aftermarket big brake kits aren’t compatible with this style. Large multi-piston brake calipers just don’t fit within the very limited spacing between the larger brake caliper and the back of the wheel. Ksport has developed the Slimline Caliper with this issue in mind, a design that’s based on the OEM single-side floating piston caliper thickness.