Ksport

SuperComp 8 Piston 400mm Slotted Big Brake Kit

$4,169.55

SKU: BKBM300-862SO

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

Description

The Ksport Procomp Big Brake Kit delivers ultimate stopping power for your vehicle, integrating advanced brake technology to combat brake fade and maintain optimal pad performance through continuous cooling. This rear brake upgrade features a red SuperComp 8 Piston caliper with a differential bore configuration, machined from aircraft-quality billet. It utilizes aluminum pistons, high-temperature seals, and stainless steel brake pad wear plates for enhanced durability and rigidity. Designed for straightforward installation, this kit includes a two-piece floating disc assembly with 400mm (15.7in) slotted rotors. The floating design minimizes weight and combats thermal stress, preventing warping. The unique slot pattern on the rotor efficiently expels gas and debris while reducing braking noise, making it ideal for vehicles experiencing significant track use. The stainless steel brake lines provide superior rigidity by preventing expansion under pressure. This specific kit, part number BKBM300-862SO, is designed for the 2011-2016 MINI Cooper Countryman R60 Chassis 2WD models with the 1.6L naturally aspirated engine. Please note that the OEM handbrake will not function with this big brake kit installed.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandKsport
Part NumberBKBM300-862SO
CategoryBrakes

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy