Bilstein B4 OE Replacement Suspension Strut Cartridge

1990–1991 Audi Coupe Quattro 2.2L Turbo

Part #: 21-030444

Overview

The Bilstein B4 OE Replacement Suspension Strut Cartridge is designed specifically for the 1990-1991 Audi Coupe Quattro, offering a direct replacement that restores your vehicle's original ride quality and handling characteristics. Engineered with precision and backed by Bilstein's renowned reputation for quality and durability, these dampers are ideal for enthusiasts who want to maintain the factory feel while ensuring reliable performance on the road.

Whether you're restoring a classic or maintaining your daily driver, the B4 OE Replacement Strut Cartridge provides a seamless fit and consistent damping performance. It helps support your vehicle's safety, comfort, and handling, making it a perfect choice for those seeking to preserve the original driving experience with a product that meets or exceeds OE standards.

Key Features

The Bilstein B4 OE Replacement Dampers incorporate advanced engineering and high-quality materials to deliver exceptional performance and longevity. Here are some of the key features:

• Designed as a direct OE replacement, ensuring perfect fitment and compatibility with your Audi Coupe Quattro.
• Constructed with high-strength steel and durable components to withstand the rigors of daily driving and spirited use.
• Bilstein's proprietary gas-pressure technology provides consistent damping performance, restoring original handling and ride comfort.
• OE-style mounting and fitment ensure straightforward installation without modifications.
• Engineered to meet or exceed OE standards, providing reliable safety and performance.
• Restores original ride height and handling characteristics for a factory-like driving experience.
• Manufactured with precision to ensure consistent damping and long service life.
• Ideal for restoring vehicle performance after suspension wear or damage, or for maintaining original factory specifications.

Construction & Design

The Bilstein B4 OE Replacement Strut Cartridge features a robust construction utilizing high-quality steel components and a precision-engineered piston rod. The cartridge design allows for easy installation into your existing suspension assembly, maintaining the original mounting points and dimensions. The internal gas-pressure technology ensures consistent damping force, reducing body roll and improving stability during cornering and braking.

Bilstein's manufacturing process includes rigorous quality control and TIG welding for enhanced durability. The design minimizes noise, vibration, and harshness (NVH), contributing to a smooth and comfortable ride that closely matches the factory specifications. The OE-style finish ensures corrosion resistance and long-lasting performance, even in challenging driving conditions.

Installation & Fitment

The Bilstein B4 OE Replacement Suspension Strut Cartridge is a bolt-on upgrade that requires no modifications to your vehicle. Designed for straightforward installation, it fits directly into the existing suspension assembly of the 1990-1991 Audi Coupe Quattro with 2.2L Turbo engines. No cutting, drilling, or special tools are necessary, and the process typically involves removing the old strut and installing the new cartridge in its place.

For best results, professional installation is recommended to ensure proper alignment and handling characteristics. Once installed, your vehicle will restore its original ride quality and handling performance, providing peace of mind and driving confidence.

What's Included

• One (1) Bilstein B4 OE Replacement Suspension Strut Cartridge for the front or rear suspension (specify as needed)
• Installation instructions and hardware (if applicable)

Ideal For

• Owners restoring or maintaining the original ride quality of their Audi Coupe Quattro
• Enthusiasts seeking reliable, OE-quality suspension components
• Drivers looking to restore handling and comfort after suspension wear or damage
• Classic car restorers and daily drivers alike who value factory performance and durability