Sale

Ksport

Slimline Big Brake Kit

$2,858.90 $2,715.69 Save $143.21

SKU: BKBM290-332CO

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

Description

The Ksport Slimline Front Big Brake Kit is engineered for the BMW E89 Z4, offering a significant upgrade in braking performance. The kit includes everything needed for a complete overhaul: calipers, floating brake discs, brake pads, and all necessary hardware. At the core of this kit are Ksport's lightweight, forged one-piece aluminum calipers. Unlike cast or welded calipers, this monolithic construction provides superior strength and even thickness distribution, preventing common failure points like fracturing and warpage. These calipers house aluminum pistons protected by heavy-duty seals capable of withstanding extreme temperatures, ensuring smooth operation and preventing corrosion. The opposed-piston design guarantees consistent brake pad wear on both sides of the rotor, while standard features like high-temperature seals, titanium retainer clips, and stainless-steel wear plates enhance durability. The two-piece rotor design contributes to reduced weight and improved fade-free performance, making it suitable for both track use and daily driving. The lightweight 6061-T6 aircraft-grade aluminum center sections lower rotational mass for quicker response and enhanced braking precision. This design also allows the rotor sections to expand and contract independently, minimizing warping from heat buildup. Ksport offers both Cross Drilled rotors, recommended for daily drivers as they run cooler, and Slotted Rotors, for vehicles experiencing more track time, which help to dissipate heat, dust, and gases effectively. This specific kit includes SC5 Street Pads, providing optimal performance in street and occasional track conditions with reduced dust and noise. An upgrade to RCI Race Pads is available for those seeking maximum stopping power under extreme track conditions. The kit also features D.O.T. compliant stainless-steel braided brake lines that reduce pedal flex for a firmer, more responsive pedal feel. Customization options for caliper color, including various premium finishes and extensive custom color choices, are available, along with optional Titanium or Twin Color Anodized Center Bell upgrades. All Ksport Big Brake Kits are made to order and come with a 12-month limited warranty covering manufacturer defects.

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 NumberBKBM290-332CO
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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