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Ksport

Big Brake Kit

$4,065.60 $3,511.20 Save $554.40

SKU: BKBM032-951SO

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

Moderate — 2–4 hours

Overview

This sophisticated bolt-on brake upgrade features larger calipers, rotors, and brake pads with increased pistons and standard full-floating rotors. All calipers are constructed from a solid billet of aircraft-grade aluminum for lightweight strength and corrosion resistance, featuring aluminum pistons for better heat resistance.
Show original supplier description
This kit builds upon the Procomp series with larger calipers, rotors, and brake pads, incorporating an increased number of pistons and standard full-floating rotors for optimal self-centering within the caliper. Constructed from a solid billet of aircraft-grade aluminum, the one-piece calipers offer exceptional lightweight strength and corrosion resistance, complemented by aluminum pistons that enhance heat management. The floating two-piece rotor design allows the outer section to shift slightly, improving self-centering, reducing brake drag, and ensuring more even pad application for enhanced performance. Customization options are available for caliper colors, including standard painted finishes like Orange, Red, Black, and Yellow, with premium high-polish options in Silver, Gold, and Titanium, as well as Glassy/Hard Anodized Colors, and over 20,000 custom color finishes. The kit comes standard with SC5 Street Pads, offering optimal braking performance for street and occasional track use, with reduced dust, noise, and rotor wear. D.O.T. compliant stainless-steel braided brake lines are also standard, providing improved pedal response and a firmer feel by preventing line expansion under pressure. Ksport Big Brake kits offer the choice between slotted or cross-drilled rotors. Cross-drilled rotors are recommended for daily-driven vehicles as they run cooler, while slotted rotors are suggested for vehicles experiencing more track use. The Ksport Supercomp 8 Piston 380mm Front Big Brake Kit is compatible with 1999-2005 BMW 3-Series models, including specific trims like the 330Ci, 330i, and 330xi. Please note that these kits are built to order and typically require a 4-6 week production and delivery timeframe.

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 NumberBKBM032-951SO
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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