Sale

Ksport

Procomp 4-Piston Rear Big Brake Kit

$2,604.80 $2,474.30 Save $130.50

SKU: BKMZ050-432SO

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

Description

This kit is specifically designed for the Mazda 6 models from 2002 to 2008. The calipers are constructed from a single billet of aircraft-grade aluminum, ensuring lightweight construction, superior strength, and corrosion resistance. They feature aluminum pistons, which offer improved heat resistance and maintain uncompromised operation. The 4-piston design, standard on 13" and 14" rear systems, greatly improves pad wear and caliper rigidity compared to OEM components. The included NAOC Ceramic SC5 Street Pads provide optimal braking for street and occasional track use, reducing brake dust by over 50% and minimizing noise and rotor wear. Furthermore, DOT compliant stainless-steel braided brake lines are standard, eliminating hose expansion under pressure for a quicker pedal response and a firmer pedal feel. All Ksport Big Brake kits are built to order and include CNC machined carbon steel caliper brackets that allow the larger calipers to bolt directly to the OEM caliper bracket location. This kit excludes 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 NumberBKMZ050-432SO
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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