Brakes› Brake Systems And Components

Ksport

8-Piston Billet Aluminum Front Big Brake Kit

$5,793.48

SKU: BKSB210-971CO

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

Moderate — 2–4 hours

Overview

It features larger-diameter disc rotors and an 8-piston caliper design for enhanced stopping power. The calipers are constructed from a solid billet of aircraft-grade aluminum for strength and corrosion resistance, with aluminum pistons for better heat management.
Show original supplier description
This kit features larger-diameter disc rotors and robust 8-piston calipers, designed to significantly enhance your vehicle's braking capabilities. Constructed from a solid billet of aircraft-grade aluminum, the 1-piece calipers offer exceptional lightweight strength and are resistant to corrosion. The aluminum pistons contribute to better heat resistance and smoother operation, while the opposed-piston caliper design ensures improved pad grip and more even wear. Reinforced carbon steel caliper brackets allow for direct bolt-on installation of these larger-than-OEM calipers without requiring modifications. The kit includes 2-piece rotors with aluminum centers, reducing rotational mass for quicker braking response and shorter stopping distances. This design also minimizes the risk of rotor warpage by allowing for more natural expansion and contraction. Additionally, the stainless steel brake lines are incorporated to prevent expansion under high temperatures and pressures, resulting in a more responsive pedal feel. The caliper seals are heavy-duty, built to withstand sustained high-temperature track use. This SuperComp Big Brake Kit requires a minimum wheel diameter of 21 inches (533.4mm) and features 421mm (16.6") outside diameter rotors. The kit is specifically designed for the 2015-2018 Subaru WRX models.

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 NumberBKSB210-971CO
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