Sale

Ksport

Big Brake Kit

$3,399.00 $3,228.66 Save $170.34

SKU: BKMZ320-446SO

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

This sophisticated bolt-on upgrade builds upon the Procomp kit by incorporating larger calipers, rotors, and brake pads, alongside increased piston count and standard full-floating rotors for enhanced self-centering within the caliper. The calipers are precision-machined from a single billet of aircraft-grade aluminum, ensuring a lightweight yet incredibly strong and corrosion-resistant structure. These calipers also feature aluminum pistons, which offer superior heat resistance and maintain consistent operation under demanding conditions. The accompanying caliper brackets are CNC machined from carbon steel, facilitating a direct bolt-on installation to the OEM caliper bracket locations, even with the significantly larger Ksport calipers. This kit features a floating two-piece rotor design, allowing the outer section of the rotor to shift slightly for better self-centering in the caliper. This reduces brake drag and optimizes performance through more even pad application. Buyers can choose between slotted or cross-drilled rotors; slotted rotors are recommended for track use due to their cooling properties and ability to shed brake dust, while cross-drilled rotors are suggested for daily driven vehicles as they run cooler and can reduce pad wear. Included are NAOC Ceramic SC5 Street Pads, designed for optimal braking performance in street and occasional track use. These pads offer a significant reduction in brake dust (50% or more compared to race pads) and minimize noise and rotor wear, with an optimal operating temperature range between 194°F and 1022°F. The kit also comes standard with D.O.T. compliant stainless-steel braided brake lines, which eliminate line expansion under pressure for a quicker pedal response and a firmer pedal feel. Customization options for caliper colors and finishes are available. Ksport Big Brake kits are built to order and typically require 4-6 weeks for production and delivery. This kit is specifically designed for the 2014-2016 Mazda 3 (Excluding Mazdaspeed models).

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 NumberBKMZ320-446SO
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.

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