Sale

Ksport

Procomp Rear Big Brake Kit

$2,858.90 $2,715.69 Save $143.21

SKU: BKBM010-443CO

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

Description

The Ksport Procomp Rear Big Brake Kit offers a significant upgrade in stopping power for the BMW E30 3-Series (1982-1992 models, including 316, 318, 320, 323, and 325). Constructed with a one-piece forged caliper from aerospace-grade aluminum, this kit ensures lightweight durability and resistance to corrosion. An opposed-piston design guarantees consistent brake pad grip and wear. The two-piece rotor design further contributes to lightweight, fade-free performance, with lightweight center sections made from 6061-T6 aircraft-grade aluminum reducing rotational mass for quicker stopping response. The rotors are heat-treated and balanced for optimal performance, with drilled or slotted options available to suit driving conditions. This big brake kit includes everything needed for a comprehensive upgrade: replacement calipers, rotors (356x32mm), brake pads (SC5 Street pads included with an option to upgrade to RCI Race Pads), stainless steel braided brake lines, and all necessary hardware. Ksport offers customization options for caliper color and center bell upgrades to personalize your vehicle's aesthetic and performance. Please note that Ksport Big Brake Kits are made-to-order and are non-refundable. This specific kit is designed for the BMW E30 3-Series from 1982 to 1992.

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 NumberBKBM010-443CO
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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