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Ksport

Procomp Big Brake Kit

$2,910.60 $2,633.40 Save $277.20

SKU: BKSC040-442SO

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

Moderate — 2–4 hours

Overview

The Ksport Procomp Big Brake Kit is a performance brake system designed for the Scion XB 2008-2016. It features a lightweight, one-piece caliper CNC machined from aircraft-quality billet, with a differential bore configuration. The kit includes stainless-steel brake lines to prevent expansion under pressure.
Show original supplier description
The Ksport Procomp Big Brake Kit offers enhanced stopping power for your Scion XB (2008-2016). The lightweight, one-piece caliper, CNC machined from aircraft-quality billet, features a differential bore configuration and weighs just over 5 lbs. It incorporates aluminum pistons, high-temperature seals, and stainless-steel brake pad wear plates for improved durability and performance. The opposed piston caliper design enhances pad wear and caliper rigidity compared to OEM systems. The kit includes stainless-steel brake lines that resist expansion under pressure, ensuring consistent brake performance. Ksport utilizes a 2-piece disc assembly to reduce both rotating and unsprung weight. For applications where thermal stresses are extreme, a floating disc option is available to prevent warping. The unique slot design on the rotor minimizes braking noise and efficiently expels gas and pad debris, while heat-treated and balanced rotors ensure optimal performance. The rotors are slotted, making them ideal for vehicles that experience significant track use.

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 NumberBKSC040-442SO
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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