Cusco Adjustable Rear Upper Arms

2011–2025 Mitsubishi Lancer Evolution 2/3 (CE9A) 2.0L Turbo

Part #: 510 474 L

Overview

The Cusco Adjustable Rear Upper Arms are high-performance suspension components designed specifically for Mitsubishi Lancer Evolution models, particularly the 2/3 generations (CE9A). Engineered to enhance your vehicle's handling and cornering capabilities, these adjustable arms provide precise suspension tuning to meet the demands of spirited driving, track days, or competitive motorsports. Whether you're a dedicated enthusiast or a professional racer, these components help you unlock your vehicle's full potential by offering improved stability and responsiveness.

Constructed with durability and precision in mind, the Cusco rear upper arms are an excellent upgrade over factory components, especially when factory parts become insufficient for aggressive driving or high-performance modifications. They work seamlessly with other Cusco suspension parts and high-grip tires to deliver a more direct and controlled driving experience. By reducing factory bushing slop and allowing for adjustable camber and toe settings, these arms enable you to fine-tune your suspension geometry for optimal grip, handling, and tire wear.

Key Features

The Cusco Adjustable Rear Upper Arms incorporate advanced design and high-quality materials to deliver superior performance and durability. Here are some of the key features:

• Constructed from lightweight yet robust steel alloy, ensuring strength without adding unnecessary weight to your vehicle.
• Precision CNC-machined for exact fitment and smooth adjustment capabilities, allowing for fine-tuning of suspension geometry.
• Adjustable camber and toe settings enable you to optimize handling characteristics for different driving conditions or track setups.
• Designed to limit factory bushing slop, providing more direct steering response and improved cornering stability.
• Corrosion-resistant coating ensures long-lasting performance even in harsh environments or during competitive use.
• Compatible with factory mounting points, making installation straightforward without the need for extensive modifications.
• Part of Cusco's renowned lineup of suspension components, trusted by motorsports enthusiasts worldwide.
• Ideal for street, spirited driving, and track use, where suspension precision is critical for performance and safety.

Construction & Design

The Cusco Rear Upper Arms are meticulously engineered using high-grade steel alloy, ensuring both strength and lightweight performance. The CNC-machined adjustment points provide precise control over camber and toe angles, giving you the flexibility to tailor your suspension setup to your specific driving style or racing requirements. The arms feature a durable, corrosion-resistant coating that protects against rust and environmental damage, maintaining optimal performance over time.

The design emphasizes a direct bolt-on installation, utilizing factory mounting locations to simplify the upgrade process. The one-piece construction and TIG welding techniques used in manufacturing ensure structural integrity and longevity, even under demanding conditions. These arms are a perfect complement to Cusco's suspension lineup, including coilovers, sway bars, and other chassis reinforcement parts, creating a comprehensive handling upgrade for your Mitsubishi Lancer Evolution.

Performance & Handling

By replacing the factory rear upper arms with Cusco's adjustable version, you gain the ability to precisely dial in your suspension geometry for maximum grip and stability. The adjustable camber allows for increased negative camber, which improves cornering grip, while the toe adjustment helps optimize tire contact patch and steering response. These enhancements translate into more predictable handling, reduced body roll, and improved overall driving confidence.

Whether you're pushing your Evo on the track or navigating twisty mountain roads, these arms help you achieve sharper turn-in and more balanced handling characteristics. The improved suspension response also contributes to better feedback through the steering wheel, giving you greater control and confidence at high speeds or during aggressive maneuvers.

Installation & Fitment

The Cusco Adjustable Rear Upper Arms are designed as a direct bolt-on upgrade for Mitsubishi Lancer Evolution models from 2011 to 2025, specifically the CE9A chassis. Installation typically requires basic hand tools and a lift or jack stands. No cutting, drilling, or extensive modifications are necessary, making it a straightforward upgrade for experienced DIY enthusiasts or professional installers. Proper alignment is recommended after installation to ensure optimal handling and tire wear.

• Easy bolt-on installation using factory mounting points
• No cutting or drilling required
• Alignment recommended after installation for best results

What's Included

• Pair of Cusco Adjustable Rear Upper Arms
• All necessary hardware and mounting components
• Installation instructions

Ideal For

• Enthusiasts seeking improved handling and suspension tuning
• Track day and racing applications requiring precise camber and toe adjustments
• Owners upgrading their Mitsubishi Lancer Evolution for high-performance driving
• Drivers looking to reduce factory suspension slop and enhance steering response