Ksport

Dualcomp Rear 4-Piston Big Brake Kit

$3,017.44

SKU: BKSB090-435CO

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

Description

This rear kit features a unique dual-caliper design with four pistons per caliper. Two pistons are dedicated to the primary foot brake system, while the other two operate independently for the handbrake, ensuring robust and reliable stopping power. It includes NAOC SC5 Street Pads, designed for optimal braking performance in street and occasional track conditions, reducing dust and noise. The kit also features D.O.T. compliant stainless-steel braided brake lines, which prevent expansion under pressure for a quicker pedal response and a firmer pedal feel compared to stock rubber lines. For customization, you can choose between Slotted or Cross Drilled rotors, with Cross Drilled recommended for daily driving and Slotted for track use. The handbrake utilizes a polished titanium cylinder and lever. Ksport Big Brake kits are built to order, and customers should anticipate a production and delivery time of 4-6 weeks. Fitment is critical, and while this kit is listed for Subaru Legacy models from 2004-2009, it's essential to confirm compatibility with your specific vehicle. The manufacturer notes that the item fits a "ton of vehicles," and customers are encouraged to use the search bar to verify fitment for their exact make, model, and trim. Fitment issues can arise, and it is recommended to confirm compatibility with the sales team before ordering to avoid potential issues, with the understanding that returns related to fitment recommendations or order errors by the sales team may be handled with fewer fees if the item is in like-new condition. Items for suspension and accessories must be unused and uninstalled to be eligible for return, as signs of installation can prevent acceptance.

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 NumberBKSB090-435CO
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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