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Ksport

Dualcomp Rear Big Brake Kit

$3,621.20 $3,127.16 Save $494.04

SKU: BKBM060-445SO

Special Order
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Ksport Dualcomp BMW Z3 Big Brake Kit is an all-in-one dual caliper solution designed for drifting and rally racing. It features a single 4-pot caliper with two pots for the foot brake and two for the handbrake, each operating independently.
Show original supplier description
The Ksport Dualcomp is a specialized rear big brake kit engineered for the BMW Z3 models from 1996 to 2002. This kit introduces a unique dual caliper system, featuring a single 4-piston caliper where two pistons are dedicated to the primary foot brake and the other two are reserved for the handbrake, each functioning on an independent circuit. This design is Formula Drift legal and is particularly beneficial for drifting and rally racing applications. The kit includes D.O.T. compliant stainless-steel braided brake lines, which help prevent expansion under pressure, leading to a quicker pedal response and a firmer pedal feel compared to stock rubber lines. Included are SC5 Street Pads, which provide optimal braking performance for street driving and occasional track use, offering reduced brake dust, noise, and rotor wear with an optimal operating temperature range of 194°F - 1022°F. Buyers can choose between Slotted or Cross Drilled rotors; Slotted rotors are recommended for track use, while Cross Drilled rotors are suggested for daily driven vehicles due to better cooling. The calipers are available in standard colors like Orange, Red, Black, and Yellow, with options for premium finishes such as Silver, Gold, Titanium, and custom colors. Ksport Big Brake kits are built to order, with an estimated production and delivery time of 4-6 weeks. Fitment is available for multiple BMW Z3 trims and model years, and customers are encouraged to use the vehicle search bar to confirm compatibility for their specific vehicle. Returns may be subject to restocking fees unless an error is made by the sales team or the company.

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 NumberBKBM060-445SO
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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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