Cusco Type-OS Rear Strut Bar

1970–1978 Nissan Fairlady Z (S30 Series) 2.4L / 2.6L / 2.8L

Part #: 246 541 A

Overview

The Cusco Type-OS Rear Strut Bar is a high-performance suspension component designed specifically for classic Nissan Fairlady Z models from 1970 to 1978. Crafted to enhance chassis rigidity and improve handling response, this rear strut bar is a popular upgrade among enthusiasts seeking to optimize their vehicle's stability during spirited driving or track days. Whether you're restoring a vintage Z or upgrading your daily driver, the Type-OS provides a reliable and stylish solution to reduce body flex and improve overall driving dynamics.

Constructed with precision and attention to detail, the Cusco Type-OS rear strut bar helps support increased cornering stability, allowing for more confident steering and improved feedback. Its classic design complements the iconic look of the S30 Z-series while delivering tangible performance benefits. If you're looking to enhance your Nissan Fairlady Z's chassis stiffness without sacrificing ride quality or comfort, this strut bar is an excellent choice.

Key Features

The Cusco Type-OS Rear Strut Bar incorporates several advanced features that make it a standout upgrade:

• Manufactured from high-quality tubular aluminum with a polished finish, combining durability with a lightweight profile that doesn't add unnecessary weight to your vehicle.
• The oval shaft design provides high rigidity and strength, effectively reducing chassis flex during aggressive cornering.
• Available in two configurations—Type 1 with pressed ribbed design and Type 2 with sectioned construction—Cusco has selected the optimal design for each application to maximize performance and fitment.
• End plates are finished in the traditional Cusco blue, adding a touch of style and brand recognition to your engine bay or trunk area.
• Includes all necessary hardware for straightforward installation, making it a hassle-free upgrade for DIY enthusiasts and professional installers alike.
• Designed specifically for the Nissan Fairlady Z (S30 series), ensuring a precise fit and seamless integration with factory mounting points.

Construction & Design

The Cusco Type-OS Rear Strut Bar features a robust construction utilizing high-grade aluminum tubing that offers excellent strength-to-weight ratio. The oval shaft design not only enhances rigidity but also contributes to a sleek, classic appearance. The end plates are carefully engineered and painted in Cusco's signature blue, providing corrosion resistance and a distinctive look. The bar's design ensures a snug fit without modifications, maintaining the integrity of your vehicle's original chassis while delivering improved handling characteristics.

Manufactured with precision TIG welding and CAD-developed components, the Type-OS strut bar exemplifies durability and quality craftsmanship. Its lightweight yet sturdy construction helps support increased chassis stiffness, which translates into more precise steering response and reduced body roll during aggressive driving maneuvers.

Performance & Sound

While the primary benefit of the Cusco Type-OS Rear Strut Bar is enhanced chassis rigidity, users often notice improved handling stability and more direct steering feedback. The reduction in body flex allows your Nissan Fairlady Z to respond more predictably to driver inputs, especially during cornering at higher speeds. Although this component does not significantly alter exhaust sound or engine noise, the improved structural integrity contributes to a more confident driving experience overall.

Installation & Fitment

The Cusco Type-OS Rear Strut Bar is designed as a bolt-on upgrade that requires no cutting or drilling. It mounts directly to the factory chassis mounting points using the included hardware, ensuring a secure and precise fit. Installation typically takes less than an hour with basic hand tools, making it accessible for both seasoned enthusiasts and first-time DIYers. No additional modifications or tuning are necessary, allowing you to enjoy the benefits of increased chassis stiffness immediately after installation.

• Easy bolt-on installation with all necessary hardware included
• Seamless fitment with factory mounting points on the Nissan Fairlady Z (S30 series)
• No cutting, drilling, or tuning required

What's Included

• Cusco Type-OS Rear Strut Bar
• All required mounting hardware and end plates
• Installation instructions

Ideal For

This rear strut bar is ideal for Nissan Fairlady Z owners who want to improve handling performance, chassis rigidity, and overall driving confidence. It is perfect for enthusiasts who enjoy spirited driving, track days, or restoring their classic Z with performance upgrades. Whether you’re looking to enhance daily driving stability or prepare your vehicle for competitive events, the Cusco Type-OS Rear Strut Bar offers a reliable and stylish solution.