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Ksport

Dualcomp Rear 4-Piston Big Brake Kit

$3,621.20 $3,047.61 Save $573.59

SKU: BKSB210-445SO

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 Big Brake Kit is a rear 4-piston brake kit designed for enhanced stopping power and precise handbrake control. This complete bolt-on system includes calipers, floating brake discs, brake pads, a handbrake, and all necessary hardware. It features a unique dual caliper setup where two pistons are dedicated to the foot brake and two are dedicated to the handbrake, each operating independently. The kit is built to order, with production and delivery typically taking 4-6 weeks.
Show original supplier description
This rear big brake kit features a sophisticated Dual Caliper system, utilizing a single 4-piston caliper where two pistons function for the primary foot brake and two are dedicated to the handbrake, each operating on independent systems. Constructed for easy installation, this kit is a complete bolt-on solution that includes everything needed: 4-piston calipers, lightweight two-piece floating rotors available in slotted or cross-drilled options, SC5 Street brake pads for optimal street and occasional track performance, and a polished titanium handbrake cylinder and lever. The calipers themselves offer extensive customization with standard painted colors and premium high-polish or custom color finishes available. CNC machined carbon steel caliper brackets ensure a direct fit to OEM locations. To enhance pedal feel and responsiveness, the kit includes D.O.T. compliant stainless-steel braided brake lines, which prevent expansion under pressure. Ksport Big Brake kits are built to order, so please allow 4-6 weeks for production and delivery. The specific fitment for this kit is for the Subaru Impreza WRX from 2015-2021, though a comprehensive vehicle fitment list can be confirmed via the search bar on the product page.

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 NumberBKSB210-445SO
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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