Ksport

356mm 8-Piston Big Brake Kit

$3,017.30

SKU: BKNS340-846CO

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

Description

The kit includes 8-piston calipers, crafted from a single billet of aircraft-grade aluminum, ensuring both light weight and exceptional strength while resisting corrosion. The 2-piece, vented, and drilled rotors measure 356mm (14") in outside diameter and require a minimum wheel size of 18" (457mm). Aluminum caliper pistons contribute to corrosion resistance and better heat management, while reinforced carbon steel caliper brackets allow for direct bolt-on installation of these oversized calipers to the factory mounting points. The 2-piece rotor design, featuring an aluminum center, reduces rotational mass, leading to quicker braking response and shorter stopping distances. This construction also minimizes the risk of rotor warping due to thermal expansion. The caliper seals are heavy-duty for sustained high-temperature use, and stainless steel brake lines are included to prevent expansion under pressure, ensuring a firmer pedal feel. This SuperComp Big Brake Kit is specifically engineered for the 2009-2018 Nissan 370z.

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 NumberBKNS340-846CO
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