Ksport

Supercomp 4-Piston Rear Big Brake Kit

$2,935.14

SKU: BKFD330-446CO

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

Description

The Ksport Supercomp 4-Piston Rear Big Brake Kit is designed to enhance braking performance for high-performance street and track use. This kit offers superior stopping power due to larger calipers, rotors, and pads compared to Procomp kits, providing improved thermal capacity. The system features lightweight, forged one-piece calipers with a vibrant orange finish and 14-inch (356mm) full-floating, two-piece, cross-drilled rotors that help dissipate heat and reduce warping. Construction of this kit utilizes aerospace-grade 6061-T6 aluminum for its CNC-machined components. The calipers house aluminum pistons equipped with high-temperature seals to withstand demanding conditions. The full-floating rotor design further contributes to consistent braking performance by improving self-centering and minimizing potential warping. The kit includes stainless steel brake lines, mounting brackets, and hardware. Installation is rated as hard, requiring mechanical expertise or professional installation. The kit is designed as a direct bolt-on upgrade, requiring no vehicle modifications. The estimated installation time is approximately 3 hours. This big brake kit is specifically designed for 2WD vehicles and requires a minimum wheel size of 18 inches. This Ksport Supercomp Rear Big Brake Kit is compatible with 2015-2023 Ford Mustang EcoBoost models. It is noted to be designed specifically for Mustang models without the Performance Pack. Additionally, a crucial application note specifies that this kit is designed for 2WD vehicles only.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandKsport
Part NumberBKFD330-446CO
CategoryBrakes

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy