Cusco Rear Frame Bar

1999–2003 Subaru Legacy BH5 / Subaru B4 BE5 2.0L

Part #: 680 487 A

Overview

The Cusco Rear Frame Bar is a high-performance chassis reinforcement component designed specifically for Subaru Legacy BH5 models from 1999 to 2003 and B4 BE5 models. Developed by Cusco's team of chassis engineers, this power brace is engineered to enhance the structural integrity of your vehicle's chassis, providing increased rigidity and minimizing body flex during spirited driving or cornering. Whether you're a performance enthusiast, a rally competitor, or a daily driver seeking improved handling, this rear frame bar offers a significant upgrade to your Subaru's chassis response.

By reinforcing the rear section of your vehicle's frame, the Cusco Rear Frame Bar helps maintain optimal suspension geometry, leading to more precise steering and improved overall stability. Its bolt-on design ensures a straightforward installation process, making it accessible for both professional mechanics and DIY enthusiasts. With this upgrade, you'll experience a more connected and confident driving experience, especially during aggressive maneuvers or challenging road conditions.

Key Features

The Cusco Rear Frame Bar is crafted with high-quality materials and precision engineering to deliver durability and performance benefits. Its key features include:

• Constructed from lightweight yet strong steel tubing, ensuring maximum reinforcement without adding unnecessary weight to your vehicle.
• Designed with a bolt-on installation that requires minimal body trimming, allowing for a clean and secure fit without extensive modifications.
• Engineered based on extensive motorsports research and data logging, ensuring optimal reinforcement where it matters most for chassis stiffness.
• Helps reduce chassis flex during cornering, improving handling response and vehicle stability.
• Enhances the overall structural integrity of the rear frame, contributing to better suspension performance and tire contact patch consistency.
• Finished with a durable coating to resist corrosion and maintain appearance over time.
• Compatible with other Cusco chassis reinforcement components for a comprehensive handling upgrade.

Construction & Design

The Cusco Rear Frame Bar features a robust design utilizing high-strength steel tubing, precisely bent and welded to fit the contours of the Subaru Legacy's chassis. Its one-piece construction ensures a seamless reinforcement that effectively distributes loads across the rear frame, reducing flex and deformation under load. The bolt-on mounting system is designed for ease of installation, requiring only minor trimming of body panels or interior components in some cases to achieve a perfect fit. The engineering process involved CAD modeling and real-world testing to optimize the placement and dimensions of the reinforcement bar, ensuring maximum effectiveness without compromising clearance or accessibility.

Installation & Fitment

The Cusco Rear Frame Bar is designed as a bolt-on component, making installation straightforward for those with basic mechanical skills. No cutting, drilling, or extensive modifications are required in most cases. The process involves removing some interior panels or underbody covers to access mounting points, then securing the reinforcement bar with the provided hardware. It is recommended to follow the included installation instructions carefully to ensure proper fitment and maximum performance benefits. The reinforcement can be installed in a few hours, making it an excellent upgrade for enthusiasts looking to improve their Subaru's chassis response without extensive downtime.

What's Included

• Complete rear frame reinforcement bar
• All necessary mounting brackets and hardware
• Installation instructions

Ideal For

• Subaru Legacy owners seeking improved chassis rigidity
• Performance enthusiasts and rally drivers
• Daily drivers wanting enhanced handling and stability
• Anyone looking to minimize body flex during spirited driving