Stoptech Stop Rotors

Fitment: 2013-2014 Lexus GS300/350/400/430

Part #: 126.44189SR

Overview

The Stoptech Slotted Sport Rear Brake Rotor is a high-performance upgrade designed for drivers seeking improved braking response and durability. Crafted from cast iron and featuring a slotted design, these rotors are engineered to enhance your vehicle’s stopping power while maintaining reliable performance under demanding driving conditions. Whether you use your Lexus for daily commuting, towing, or spirited driving, these rotors provide a consistent and confident braking experience. Their slotted pattern helps dissipate heat and gases, reducing brake fade and ensuring optimal pad contact for improved braking feel and control. Designed for the enthusiast who demands both style and function, these rotors combine durability with a performance-oriented design. The cryo-treating option further enhances the rotor’s lifespan and resistance to warping, making them suitable for aggressive driving and heavy-duty use. Easy to install and compatible with your vehicle’s existing brake components, these rotors are an excellent choice for upgrading your Lexus’s braking system.

Key Features

These Stoptech Sport Rotors are built with precision and performance in mind, featuring:

• One-piece cast iron construction for strength and longevity
• Slotted design for improved heat dissipation and gas venting
• Cryo-treated option for enhanced durability and resistance to warping
• Direct bolt-on replacement for OEM rear rotors
• Designed to support daily driving, towing, and performance applications
• Optimized for consistent braking response and fade resistance
• Manufactured to meet or exceed OEM quality standards

Construction & Design

The rotors are made from high-quality cast iron, selected for its excellent thermal properties and wear resistance. The slotted pattern is precisely machined to ensure uniform gas and debris removal, which helps maintain pad contact and reduces brake fade during extended use. The option for cryo treatment involves controlled cooling processes that strengthen the rotor’s microstructure, further extending its service life and stability under high temperatures.

Installation & Fitment

These rotors are designed as direct replacements for the original rear rotors on compatible Lexus GS models from 2013 to 2014. Installation typically involves standard brake service procedures, and no additional modifications are required. Proper torque specifications should be followed to ensure optimal performance and safety.

What’s Included

The package includes one pair of rear brake rotors, ready for installation on your vehicle. Hardware and additional components are not included and should be transferred from your existing setup or purchased separately if needed.