Prothane Rear Sway Bar Bushing Kit

2004–2005 Subaru Impreza WRX STI 19mm or 20mm Rear Sway Bar

Part #: 16-1103

Overview

The Prothane Rear Sway Bar Bushing Kit is designed to enhance the handling and stability of your Subaru Impreza WRX STI from 2004 to 2005. This high-quality upgrade replaces the factory bushings with durable polyurethane components that provide improved responsiveness and reduced body roll during spirited driving or aggressive cornering. Whether you're a performance enthusiast looking to fine-tune your suspension or a daily driver seeking better road feel, this kit offers a straightforward solution to upgrade your vehicle's chassis dynamics.

By installing these bushings, you'll experience more precise steering feedback and improved control, especially during high-speed turns. The kit is ideal for Subaru owners who want to maximize their vehicle's handling capabilities without extensive modifications. Plus, the polyurethane material ensures long-lasting performance and resistance to wear, maintaining optimal suspension function over time.

Key Features

The Prothane Rear Sway Bar Bushing Kit boasts several key features that make it a superior choice for Subaru Impreza WRX STI owners:

• Constructed from high-quality polyurethane that resists cracking, tearing, and deterioration compared to OEM rubber bushings.
• Precisely engineered to fit 2004-2005 Subaru Impreza WRX STI models with 19mm or 20mm rear sway bars, ensuring a perfect fit and easy installation.
• Reduces unwanted sway and body roll, providing a more planted and confident driving experience.
• Enhances steering response and overall handling dynamics, especially during aggressive driving or track days.
• Designed to withstand harsh road conditions and maintain performance over time, thanks to its durable material composition.
• Easy to install with basic hand tools, making it accessible for DIY enthusiasts and professional mechanics alike.
• Offers a cost-effective upgrade over replacing worn factory bushings, delivering noticeable handling improvements.

Construction & Design

The Prothane Rear Sway Bar Bushing Kit features a robust polyurethane formulation that balances flexibility with durability. The bushings are precisely molded to match the OEM specifications, ensuring a snug fit that minimizes unwanted movement and squeaking. The kit includes all necessary components to replace the factory bushings, including sleeves and mounting hardware if applicable. The polyurethane material maintains its shape and performance even after prolonged exposure to heat, moisture, and road debris, making it a reliable upgrade for daily driving or spirited performance use.

Installation & Fitment

The Prothane Rear Sway Bar Bushing Kit is designed for a straightforward bolt-on installation. No cutting, drilling, or complex modifications are required. Simply remove the factory bushings, clean the mounting surfaces, and replace with the polyurethane bushings included in the kit. Basic hand tools are sufficient for installation, and the process typically takes less than an hour. Proper lubrication of the bushings with the included or recommended lubricant ensures smooth operation and longevity. This kit is compatible with 2004-2005 Subaru Impreza WRX STI models equipped with 19mm or 20mm rear sway bars, providing a direct upgrade to your suspension system.

What's Included

• Prothane polyurethane rear sway bar bushings (set for 19mm or 20mm sway bars)
• Mounting hardware and sleeves (if applicable)
• Installation instructions

Ideal For

• Subaru Impreza WRX STI owners seeking improved handling and responsiveness
• Performance enthusiasts looking to reduce body roll and enhance cornering stability
• DIY mechanics and professional installers aiming for a durable, long-lasting suspension upgrade
• Drivers who want a cost-effective way to upgrade their vehicle's chassis feel without extensive modifications