Ksport

Billet Aluminum Caliper Kit w/ 2-Piece Rotors

$4,065.60

SKU: BKBM321-652SO

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

Description

The Ksport Procomp Mini Cooper Rear Big Brake Kit offers ultimate stopping power and enhanced brake performance, especially under high-heat conditions. This kit features a sophisticated bolt-on design for straightforward installation with minimal tools required. The calipers are constructed from a solid billet of aircraft-grade aluminum, utilizing a 1-piece monoblock design for exceptional strength, light weight, and corrosion resistance. They also incorporate aluminum pistons with high-temperature seals for superior heat management and consistent operation. The opposed-piston design ensures even brake pad wear and rigidity. This kit includes lightweight two-piece rotors, available in either cross-drilled (recommended for daily driving as they run cooler) or slotted (recommended for track use) designs. Center bell upgrades to Titanium or Twin Color Anodized options are available for further customization. Standard components also include D.O.T. compliant stainless-steel braided brake lines for improved pedal response and feel, and SC5 Ceramic Street Brake Pads offering optimal performance for street and occasional track use with reduced dust and noise. An upgrade to RCI Race Pads for extreme track conditions is also available. All Ksport Big Brake Kits come with a 12-month limited warranty. This system requires 19" wheels or larger. Please note that Ksport Big Brake kits are built to order and typically require 4-6 weeks for production and delivery.

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 NumberBKBM321-652SO
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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