Ksport

Supercomp Rear Big Brake Kit 356mm Slotted 4-Piston

$2,770.56

SKU: BKMD120-447SO

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

Description

The Ksport Supercomp Rear Big Brake Kit is engineered to deliver unparalleled stopping power for your Mercedes Benz S210 E-Class. This advanced braking system integrates new technologies to significantly reduce brake fade and continuously cool the brake pads during operation. At the heart of this kit is the extreme lightweight SuperComp caliper, forged from aircraft-quality billet aluminum. It features a differential bore configuration with significantly larger pistons than standard calipers, weighing just over 7 lbs. each and incorporating protection grooves for bridge tubes. 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 pad wear and caliper rigidity compared to OEM setups, while stainless steel brake lines prevent expansion under pressure. Each caliper requires four brake pads due to its size. The kit includes a 2-piece floating disc assembly, which reduces both rotating and unsprung weight. The floating disc design mitigates thermal stresses from extreme heat, preventing warping or cupping of the braking surface. The unique slot design on the rotor minimizes braking noise and efficiently expels gas and pad debris. Rotors are heat-treated and balanced for optimal performance. Slotted rotors are recommended for track use, while cross-drilled rotors are better suited for daily driving as they tend to run cooler. This product is made to order and is non-refundable. Customers are advised to verify fitment for their specific vehicle, as UroTuning does not list comprehensive fitment details for this item.

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 NumberBKMD120-447SO
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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