Cusco Lower Arm Bar Ver.1 Rear

1992–2000 Honda Civic Type R (EK9) / Civic EK4 1.6L

Part #: 311 476 A

Overview

The Cusco Lower Arm Bar Ver.1 Rear is a high-performance suspension upgrade designed specifically for Honda Civic models EK9 and EK4. Crafted to enhance the structural integrity of your vehicle's chassis, this lower arm bar significantly improves body rigidity, resulting in more precise handling and better suspension response. Whether you're a street enthusiast, a track day driver, or someone seeking to optimize your Civic's performance, this component offers a straightforward way to elevate your driving experience.

By reinforcing the suspension mounting points, the Cusco Lower Arm Bar helps reduce chassis flex during spirited driving, cornering, and aggressive maneuvers. This leads to more consistent suspension geometry, improved steering feel, and enhanced traction. Its simple yet effective design makes it an ideal upgrade for those looking to maximize their Civic's handling capabilities without extensive modifications.

Key Features

The Cusco Lower Arm Bar Ver.1 Rear incorporates several technical features that contribute to its performance benefits:

• Solid steel construction with a robust truss structure that reinforces the suspension mounting points and increases overall chassis stiffness.
• Designed to connect the lower arm at two points on each side, effectively reducing body flex and suspension alignment changes during dynamic driving.
• Simple, lightweight design that does not interfere with other suspension components or undercarriage elements.
• Precision-engineered mounting brackets ensure a secure fit and easy installation without modifications.
• Improves steering response, traction, and overall handling by maintaining optimal suspension geometry under load.
• Manufactured by Cusco, a trusted brand known for high-quality suspension and chassis reinforcement components.

Construction & Design

The Cusco Lower Arm Bar Ver.1 Rear is constructed from high-strength steel, ensuring durability and long-lasting performance. Its solid truss design effectively distributes loads across the chassis, minimizing flex and deformation during aggressive driving. The bar's simple shape allows for easy installation, typically requiring only basic tools and no cutting or drilling. The precise CAD-developed brackets and mounting points guarantee a perfect fit on the EK9 and EK4 chassis, maintaining factory ground clearance and compatibility with other suspension components.

Performance & Sound

By reinforcing the rear suspension mounting points, this lower arm bar helps improve transmission efficiency, steering response, and overall handling stability. While it does not produce a noticeable sound change, the increased chassis stiffness results in a more confident and responsive driving feel, especially during cornering and quick directional changes. The upgrade supports a more direct connection between the suspension and chassis, translating to better feedback and control on the road or track.

Installation & Fitment

The Cusco Lower Arm Bar Ver.1 Rear is a bolt-on upgrade designed for a straightforward installation process. It mounts directly to the factory suspension points using existing hardware, with no need for cutting, drilling, or complex modifications. Basic hand tools are sufficient, and the installation can typically be completed within an hour. Once installed, you'll immediately notice improved chassis rigidity and handling response, making it a valuable upgrade for enthusiasts seeking enhanced driving dynamics.

What's Included

• Complete rear lower arm bar assembly with mounting brackets and hardware
• Installation instructions

Ideal For

• Honda Civic EK9 Type R owners looking to improve handling and chassis stiffness
• Street and track enthusiasts seeking a reliable suspension reinforcement upgrade
• Drivers aiming for more precise steering and traction during spirited driving

Emissions Note

This product is designed for off-road or racing use only and may not be legal for street use in all regions. Please check local regulations before installation.