Ksport BKIN420-836SO Supercomp Rear 4-Piston Big Brake Kit 13in Slotted Rotors

The Ksport BKIN420-836SO SuperComp Big Brake Kit is Ksport's most extreme brake upgrade, engineered to deliver the highest level of stopping power available as a true bolt-on installation — no vehicle modifications required in most applications. Featuring larger calipers, rotors, and brake pads than the ProComp series, along with increased piston count and standard full-floating two-piece rotors, this kit represents a significant performance leap over stock braking systems.

SuperComp Caliper Construction:

• One-piece aerospace-grade aluminum billet construction — calipers are machined from a single solid block rather than cast or welded, eliminating weak points that lead to fracturing, warpage, or failure over time
• Opposed-piston caliper design greatly improves pad grip, promotes even pad wear, and increases caliper rigidity over OEM designs
• Aluminum caliper pistons provide superior heat resistance, corrosion freedom, and lighter weight compared to steel pistons
• Heavy-duty high-temperature seals designed to withstand racetrack-level thermal stress
• Stainless steel brake pad wear plates standard on every caliper
• Differential bore configuration with larger pistons than the ProComp series for increased clamping force

Two-Piece Floating Rotor System:

• Standard full-floating two-piece rotor design reduces both rotating and unsprung weight
• Floating outer rotor section self-centers in the caliper, lowering brake drag and promoting more even pad application
• Thermal isolation between the rotor hat and disc prevents heat-related warping and cupping of the braking surface
• Rotors weigh up to 50% less than OEM rotors of the same diameter
• Unique slot design expels gas and pad debris quickly while reducing braking noise
• Every rotor is heat treated and balanced prior to shipment
• Slotted rotor style — recommended for performance driving and track use

Hardware & Brake Lines:

• CNC machined carbon-steel caliper brackets allow the larger-than-OEM calipers to mount directly to factory caliper bracket locations
• D.O.T. compliant stainless-steel braided brake lines resist expansion under pressure for a firmer pedal feel and quicker response versus rubber OEM lines

Brake Pads & Customization:

• Includes NAOC Ceramic SC5 Street Pads for optimal performance under street and occasional track conditions
• Caliper color options: Orange, Red, Black, and Yellow standard; premium Silver, Gold, Titanium, and hard-anodized finishes available as upgrades
• Optional Titanium Center Bell, hardware upgrades, and Twin Color Anodized Center Bell available for further customization

What's Included:

• SuperComp 4-piston rear calipers
• 13-inch (330mm) slotted floating two-piece rotors
• NAOC Ceramic SC5 brake pads
• D.O.T. compliant stainless-steel braided brake lines
• CNC machined carbon-steel caliper brackets
• All required hardware and owner's manual

The Ksport SuperComp Big Brake Kit is backed by a 12-month manufacturer defect warranty. Please note this kit is built to order — allow 4–6 weeks for production and delivery. Rotor diameter: 330mm (13 in.) | Position: Rear | Caliper type: 4-Piston | Rotor style: Slotted.