Sale

Ksport

Supercomp 400x36mm Rear Big Brake Kit

$5,145.80 $4,888.25 Save $257.55

SKU: BKPO120-863CO

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

Description

The Ksport Supercomp Big Brake Kit is engineered to deliver superior stopping power for the rear of your Porsche 718 Boxster. Installation is intended to be straightforward, requiring minimal tools for most applications. The SuperComp caliper is a standout component, crafted from aircraft-quality billet aluminum for extreme lightness and rigidity. It features larger pistons than Ksport's ProComp calipers, improving pad wear and caliper strength. Standard features include aluminum pistons, high-temperature seals, titanium brake pad retainer clips, and stainless-steel brake pad wear plates. The opposed piston design enhances rigidity and pad wear, while the stainless-steel brake lines prevent expansion under pressure. Due to the caliper's size, each one requires four brake pads. This kit includes a 2-piece floating disc assembly, which reduces rotating and unsprung weight. The floating design also mitigates thermal stresses that can warp the disc or cup the braking surface. The rotors feature a unique slot design to reduce noise and expel gas and debris, with both cross-drilled (recommended for daily drivers) and slotted (recommended for track use) options available. The system comes standard with Ksport SC5 Street Pads, made from NAOC ceramic for optimal street and occasional track use, with an option to upgrade to Ksport RC5 Race Pads (carbon metallic) for extreme track conditions. All Ksport Big Brake Kits are made to order and are non-refundable. The kit is compatible with the Porsche Boxster 982 718 (2017+) Base 2.0L and S 2.5L models. A 12-month limited warranty covering manufacturer defects is included.

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 NumberBKPO120-863CO
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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