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Ksport

Dualcomp 4 Piston 330mm Rear Big Brake Kit

$3,367.10 $3,198.48 Save $168.62

SKU: BKMZ180-434SO

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

Moderate — 2–4 hours

Overview

The Ksport Dualcomp 4 Piston Big Brake Kit is a rear brake upgrade designed for the Mazda 5 (2005-2010). It features a dual caliper system with two pistons for the foot brake and two for the handbrake, each operating independently. The kit includes calipers, floating brake discs (available in slotted or cross-drilled), brake pads, and all necessary hardware for a complete bolt-on installation.
Show original supplier description
The Ksport Dualcomp 4 Piston 330mm Rear Big Brake Kit offers a unique dual caliper solution, engineered for applications like drifting and rally racing. This advanced system incorporates a single 4-pot caliper where two pistons are dedicated to the foot brake and the other two are independently controlled by the handbrake system. The included SC5 Street Pads provide optimal braking performance for street use and occasional track conditions, offering reduced dust and noise compared to race pads, with an optimal operating temperature range of 194°F - 1022°F. Additionally, the kit comes with D.O.T. compliant stainless-steel braided brake lines to prevent line expansion under pressure, resulting in quicker pedal response and a firmer pedal feel. Ksport provides customization options for the calipers, including standard painted colors like Orange, Red, Black, and Yellow, with upgrades available for premium high polish finishes (Silver, Gold, Titanium) and a wide array of custom color finishes. Buyers can choose between Slotted or Cross Drilled Rotors, with Cross Drilled recommended for daily driven vehicles due to better cooling, and Slotted rotors for track use. The Dualcomp Big Brake Kit is Formula Drift legal. Please note that Ksport Big Brake kits are built to order and typically require 4-6 weeks for production and delivery. This kit is specifically designed to fit various Mazda 5 models from 2005-2010.

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 NumberBKMZ180-434SO
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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