Sale

Ksport

Big Brake Kit with Forged Aluminum Calipers

$3,017.30 $2,866.57 Save $150.73

SKU: BKBM051-846SO

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

Description

This sophisticated, bolt-on system builds upon the foundations of the Procomp kit, incorporating larger calipers, rotors, and brake pads, a higher piston count, and full-floating rotors that enhance self-centering capabilities. Constructed from a solid billet of aircraft-grade aluminum, the one-piece calipers offer exceptional lightweight strength and resistance to corrosion. Complementing the calipers are CNC-machined carbon steel brackets, which facilitate the direct bolt-on installation to the OEM caliper bracket locations, accommodating the significantly larger caliper size. The kit features standard floating two-piece rotors. This results in reduced brake drag and more even pad application, ultimately boosting performance. The kit includes NAOC Ceramic SC5 Street Pads, which offer optimal braking for street use and occasional track days, with significantly reduced dust, noise, and rotor wear. DOT-compliant stainless-steel braided brake lines are also included, providing a firmer pedal feel and quicker response by preventing line expansion under pressure. Available with either slotted or cross-drilled rotors – slotted are recommended for track use, while cross-drilled are suggested for daily drivers – the Supercomp kit allows for customization. Ksport Big Brake kits are built to order, with production and delivery typically taking 4-6 weeks. The listed fitment is for 1999-2005 BMW M3 Base models, though a full vehicle fitment list can be accessed via the search bar.

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 NumberBKBM051-846SO
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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