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Brakes Brake Systems And Components

Ksport

Supercomp Rear Big Brake Kit with 356mm Slotted Rotors

$3,399.00 $3,228.66 Save $170.34

SKU: BKMZ100-446SO

In Stock
In Stock
Ships by Sep 1
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Ksport Supercomp Big Brake Kit is an extreme rear brake upgrade designed for the 1993-2002 Mazda RX-7. This bolt-on system provides enhanced stopping power without requiring vehicle modifications. It features larger calipers, 356mm slotted rotors, and increased pistons compared to the Procomp kit, along with full-floating rotors for better self-centering.

Calipers are constructed from a solid billet of aircraft-grade aluminum for strength and corrosion resistance, and include aluminum pistons for heat management. The kit comes with CNC machined carbon steel caliper brackets, D.O.T. compliant stainless steel braided brake lines for improved pedal feel and response, and SC5 NAOC Ceramic brake pads suitable for street and occasional track use.
Show original supplier description
The Ksport Supercomp Big Brake Kit represents the pinnacle of braking upgrades for the 1993-2002 Mazda RX-7, engineered to deliver exceptional stopping power. This sophisticated, direct-fit, bolt-on system eliminates the need for vehicle modifications, integrating seamlessly with your existing setup while significantly enhancing performance. The Supercomp kit distinguishes itself from the Procomp line with its larger calipers, rotors, and brake pads, featuring an increased piston count and standard full-floating rotors that promote better self-centering within the caliper for reduced drag and more consistent application. Crafted for durability and performance, the calipers are forged from a solid billet of aircraft-grade aluminum, ensuring a lightweight yet incredibly strong and corrosion-resistant construction. Aluminum pistons within the calipers offer superior heat resistance for uncompromised operation under demanding conditions. Furthermore, D.O.T. compliant stainless steel braided brake lines are standard, preventing line expansion under pressure to deliver a quicker pedal response and a firmer pedal feel compared to stock rubber lines. Included in this kit are Ksport's SC5 NAOC Ceramic brake pads, which are optimized for braking performance on the street and during occasional track sessions. These pads offer a significant reduction in brake dust (50% or more compared to race pads) and minimize rotor wear and noise. They perform optimally within a temperature range of 194°F to 1022°F. The rotors are available in a slotted design, recommended for track use due to their enhanced cooling and ability to shed debris. Ksport Big Brake kits are built to order, with an estimated production and delivery time of 4-6 weeks. Specific fitment is confirmed for the 1993-2002 Mazda RX-7 Base models, and buyers are encouraged to use the fitment search tool for full compatibility.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandKsport
Part NumberBKMZ100-446SO
CategoryBrakes

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

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