Sale

Ksport

ProComp 8-Piston 356mm Front Brake Kit

$2,668.60 $2,534.65 Save $133.95

SKU: BKAU140-841SO

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

Description

The Ksport Procomp Big Brake Kit offers a substantial upgrade in stopping power, integrating advanced brake technology to significantly reduce brake fade and continually refresh the brake pad surface during operation. The kit features extreme lightweight ProComp 8-piston calipers, machined from aircraft-quality billet, which come in a differential bore configuration. These calipers weigh just over 5lbs each and include protection grooves for bridge tubes. Standard features on each caliper include aluminum pistons, high-temperature seals, and stainless steel brake pad wear plates, contributing to improved pad wear and caliper rigidity over OEM designs. Utilizing a 2-piece floating disc assembly, this kit reduces both rotating and unsprung weight. The floating disc design also mitigates thermal stresses from extreme heat, preventing rotor warping or cupping of the braking surface. The unique slot design on the rotors effectively reduces braking noise and more rapidly expels gas and pad debris compared to conventional slot designs. Each rotor is heat-treated and balanced for optimal performance. This specific kit features slotted rotors, which are recommended for vehicles that see more track use than daily driving. This Ksport Procomp Big Brake Kit (BKAU140-841SO) is specifically designed for the 2004-2005 Audi S4 B6 Chassis with the 4.2L V8 engine.

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 NumberBKAU140-841SO
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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