Brakes› Brake Systems And Components

Ksport

Supercomp Big Brake System

$2,444.12

SKU: BKMZ150-836SO

Special Order
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Ksport Supercomp Big Brake System is an extreme brake upgrade designed for the Mazda 323F. This kit provides superior stopping power without requiring vehicle modifications for installation. It features larger calipers, rotors, and brake pads compared to their Procomp kit, along with increased piston sizes and standard full-floating rotors for enhanced self-centering. The calipers are constructed from a solid billet of aircraft-grade aluminum for strength and corrosion resistance, and include aluminum pistons for better heat management.
Show original supplier description
The Ksport Supercomp Big Brake System is an extreme, bolt-on brake upgrade engineered to deliver maximum stopping power for your Mazda 323F. This sophisticated kit requires no vehicle modifications for installation and is designed to fit with 17-inch wheels and above. The system features larger calipers, rotors, and brake pads, alongside increased piston sizes and standard full-floating rotors for optimal self-centering within the caliper. The calipers are constructed from a solid billet of aircraft-grade aluminum, offering unparalleled strength, light weight, and resistance to corrosion. They also incorporate aluminum pistons for superior heat resistance and consistent operation, protected by heavy-duty seals capable of handling racetrack temperatures. The opposed-piston design ensures even brake pad grip and wear. Included in the standard kit are two forged, monoblock aluminum calipers, two lightweight two-piece rotors (available in Slotted or Cross Drilled options), a set of SC5 Street Brake Pads, two stainless steel brake lines, and all necessary mounting components and hardware. Optional upgrades include RCI Race Pads for extreme track use and various custom caliper color finishes. Ksport big brake kits come with a 12-month limited warranty covering manufacturer defects. Production and delivery typically take 4-6 weeks as these kits are built to order.

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 NumberBKMZ150-836SO
CategoryBrakes
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Returns & Fitment

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

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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