Sale

Brakes› Brake Systems And Components

Ksport

1-Piece Billet Aluminum Big Brake Kit

$2,763.20 $2,386.52 Save $376.68

SKU: BKSB210-437SO

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 kit features larger calipers, rotors, and brake pads compared to the Procomp kit, along with increased pistons and standard full-floating rotors for better self-centering. The calipers are constructed from a 1-piece billet of aircraft-grade aluminum for strength and corrosion resistance, and utilize aluminum pistons for improved heat management.
Show original supplier description
The Ksport Supercomp Big Brake Kit is engineered as the most extreme brake upgrade available, offering unparalleled stopping power without necessitating any modifications to your vehicle. The calipers themselves are forged from a single billet of aircraft-grade aluminum, ensuring a lightweight yet incredibly strong and corrosion-free component. Aluminum pistons are employed for their superior heat resistance and reliable operation. The two-piece floating rotor design allows the outer section to shift, improving self-centering, reducing brake drag, and enhancing performance through more consistent application. For customization, caliper colors range from standard options like Orange, Red, Black, and Yellow to premium high-polish finishes and over 20,000 custom color choices. The kit includes SC5 Street Pads, offering optimal performance for street and occasional track use, with reduced dust (by 50%+) and noise. DOT-compliant stainless-steel braided brake lines are also standard, providing a quicker pedal response and firmer pedal feel by preventing expansion under pressure. Customers can choose 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 intended for more track use. This Ksport Big Brake Kit is built to order, with production and delivery typically taking 4-6 weeks. It is specifically designed for the 2015-2021 Subaru WRX models. Fitment can be confirmed by searching the vehicle in the provided search bar or by selecting from the dropdown menus for year, make, model, trim, drive, engine, and body style. If fitment is confirmed by the sales team and the product does not fit, it can be returned with no restocking fees, provided the item is in like-new condition. However, returns may be subject to a restocking fee if not due to an error on the seller's part.

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 NumberBKSB210-437SO
CategoryBrakes

About MOTORMIA

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold

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.

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.

View Full Shipping Policy