Ksport

Big Brake Kit with Floating Disc Assembly

$2,534.65

SKU: BKSB090-841SO

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 delivers the ultimate in stopping power for your vehicle, integrating new brake technology to significantly reduce brake fade and continually cool the brake pad surface during braking. Each extreme lightweight caliper is crafted from aircraft-quality billet and features a differential bore configuration with an opposed piston design. This enhances pad wear and caliper rigidity compared to OEM designs. Standard features include aluminum pistons, high-temperature seals, and stainless steel brake pad wear plates. The included stainless steel brake lines prevent expansion under pressure. The kit utilizes a 2-piece floating disc assembly to reduce both rotating and unsprung weight, while also mitigating thermal stresses from extreme heat to prevent disc warping or cupping. The unique slotted rotor design minimizes braking noise and more efficiently expels gas and pad debris. Rotors are heat-treated and balanced for optimal performance; slotted rotors are recommended for track use, while cross-drilled rotors are suggested for daily drivers. This specific kit is designed for the front position and features 8-piston ProComp calipers in red, paired with 356mm (14-inch) slotted rotors. It is compatible with the 2003-2009 Subaru Legacy GT 2.5 (BL9 Chassis) and the 2004-2009 Subaru Legacy (BL5 Chassis).

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 NumberBKSB090-841SO
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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