Sale

Ksport

Dualcomp Rear Big Brake Kit with 356mm Rotors

$3,621.20 $3,439.88 Save $181.32

SKU: BKBM040-445CO

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

Description

The Ksport Dualcomp Rear Big Brake Kit is an advanced braking system engineered for the BMW E36 M3, offering enhanced performance for drifting and rally racing. This kit features a unique Dualcomp system that utilizes a single 4-piston caliper, with two pistons dedicated to the foot brake and two independently operating pistons for the handbrake. The caliper itself is constructed from a lightweight, forged one-piece billet of aerospace-quality aluminum, ensuring exceptional strength and resistance to warping or failure under extreme conditions. It incorporates high-temperature seals and aluminum pistons for smooth operation and corrosion resistance. The opposed-piston design promotes consistent brake pad wear. The rotors feature lightweight center sections made from 6061-T6 aircraft-grade aluminum, lowering rotational mass for quicker stopping response and reduced brake fade. The two-piece design also allows for independent expansion and contraction of the rotor sections, minimizing warping due to heat. Included with the kit are Ksport's SC5 Street Pads, known for optimal braking performance in street and occasional track use, with reduced dust and noise. An upgrade to RCI Race Pads is available for those prioritizing extreme track conditions. The kit also features a polished titanium handbrake cylinder and lever for improved feel and aesthetics, CNC-machined carbon steel caliper brackets for direct OEM fitment, and D.O.T. compliant stainless-steel braided brake lines that enhance pedal response and firmness. This Big Brake Kit is Formula Drift legal and comes standard with everything needed for installation, including calipers, floating brake discs, brake pads, handbrake, and all required hardware. Ksport offers numerous custom caliper color options and center bell upgrades to personalize the look of your braking system. Please note that this product is made to order and is non-refundable.

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 NumberBKBM040-445CO
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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