Ksport

Big Brake Kit with SC5 Street Pads and Stainless Steel Lines

$4,254.59

SKU: BKMZ320-447SO

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

Description

This kit elevates performance beyond the Procomp line with larger calipers, rotors, and pads, increased piston count, and standard full-floating rotors for enhanced self-centering. The calipers are precision-machined from a solid billet of aerospace-grade aluminum, ensuring a lightweight yet incredibly strong and corrosion-free component. The one-piece forged construction guarantees uniform thickness and strength. Aluminum pistons are incorporated for superior heat resistance. Standard on the Supercomp system are floating two-piece rotors. This design reduces brake drag and improves performance through more consistent pad application. Buyers can choose between slotted or cross-drilled rotors; cross-drilled options offer better cooling for daily drivers, while slotted rotors are recommended for track use. The included SC5 Street Pads provide excellent braking performance under street and occasional track conditions, with reduced dust and noise compared to race pads, operating optimally between 194°F and 1022°F. D.O.T. compliant stainless-steel braided brake lines are included, which prevent hose expansion under pressure, leading to quicker pedal response and a firmer pedal feel. The calipers are available in standard painted finishes like Orange, Red, Black, and Yellow, with premium high-polish options including Silver, Gold, Titanium, and Glassy/Hard Anodized Colors, along with over 20,000 custom color possibilities. This kit is specifically designed for the 2014-2016 Mazda 3. Ksport Big Brake kits are built to order, with an estimated production and delivery time of 4-6 weeks.

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 NumberBKMZ320-447SO
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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