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Brakes› Brake Systems And Components

Ksport

Rear 4 Piston Big Brake Kit

Name: Rear 4 Piston Big Brake Kit
Brand: Ksport
SKU: BKTY720-452SO

$4,043.37 $3,675.79 Save $367.58

SKU: BKTY720-452SO

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Ksport Rear 4 Piston Big Brake Kit is a performance braking system designed to enhance stopping power. This kit features 8-piston calipers constructed from aircraft-quality billet aluminum with a one-piece design. The system includes 2-piece, 15-inch slotted rotors with a floating disc option to combat thermal stress and warping.

Show original supplier description

The Ksport Rear 4 Piston Big Brake Kit is engineered to provide superior stopping performance and reduce brake fade for your vehicle. This comprehensive kit includes a pair of 8-piston calipers, precision-machined from aircraft-quality billet aluminum into a lightweight, one-piece construction. These opposed-piston calipers offer improved pad grip and rigidity compared to OEM designs, while aluminum pistons resist corrosion and reduce weight. Each kit features 2-piece, 15-inch (380mm) slotted rotors with a 32mm width. The floating disc option is available to mitigate thermal stresses from extreme heat, preventing rotor warping and maintaining a flat braking surface. The unique rotor slot design efficiently expels heat, dust, and gases, while Ksport's calipers utilize heavy-duty seals for sustained high-temperature use. For enhanced pedal response, the kit includes stainless steel brake lines that resist expansion under pressure. Ksport offers various rotor styles, including slotted (recommended for track use) and cross-drilled (recommended for daily driving). Buyers can also choose between SC5 Street pads for everyday use or RC1 Race Pads for extreme track conditions. The kit is backed by a standard 12-month warranty covering manufacturer defects.

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

Brand	Ksport
Part Number	BKTY720-452SO
Category	Brakes

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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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