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Ksport

350mm Slotted Big Brake Kit w/ 3-Piston Calipers

$3,303.30 $3,138.14 Save $165.16

SKU: BKLX131-342SO-1

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

Moderate — 2–4 hours

Overview

It features 3-piston calipers and 350mm slotted rotors. The kit includes NAOC Ceramic SC5 Street Pads and D.O.T. compliant stainless-steel braided brake lines, which reduce brake dust and noise while providing a firmer pedal feel. This kit is built to order, with production and delivery times typically around 4-6 weeks.
Show original supplier description
The Ksport Slimline 3-Piston Big Brake Kit is engineered to address the challenge of fitting large brake calipers behind aggressive or factory wheels with minimal clearance. Its design is based on OEM single-side piston caliper thickness, allowing for upgrade to a Big Brake Kit even with limited space. This kit features 350mm slotted rotors and 3-piston calipers, which maintain a similar aesthetic to Ksport's multi-piston calipers while offering enhanced stopping power. The kit includes CNC-machined carbon steel caliper brackets to ensure a direct bolt-on fit to OEM caliper bracket locations. It also comes with NAOC Ceramic SC5 Street Pads, designed for optimal street and occasional track performance with reduced dust and noise. Additionally, D.O.T. compliant stainless-steel braided brake lines are standard, minimizing line expansion under pressure for improved pedal response and feel. Ksport Big Brake kits are built to order, so please allow 4-6 weeks for production and delivery. The Slotted Rotors are recommended for vehicles that will see more track time, while Cross Drilled rotors are recommended for daily driven vehicles as they run cooler. This kit is specifically designed for the 2006-2012 Lexus GS models, including the GS300, GS350, and GS430 trims.

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

BrandKsport
Part NumberBKLX131-342SO-1
CategoryBrakes
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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.

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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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