AST 5300 Series Coilovers

Fitment: 2021+ BMW M3/M4

Part #: RAC-B2112SD

Overview

The AST 5300 Series Coilovers are high-performance suspension components designed specifically for the 2021 and newer BMW M3 and M4 models. Engineered for enthusiasts who demand precise handling and adjustable ride characteristics, these coilovers help you tailor your vehicle’s stance and performance to your driving style. Crafted with durability and reliability in mind, they are ideal for track days, spirited driving, or everyday use where superior handling is desired. The 3-way adjustable dampers allow for independent tuning of compression and rebound, providing a customizable driving experience that enhances both responsiveness and stability. Whether you’re a professional racer or a dedicated enthusiast, these coilovers support your pursuit of optimal vehicle control and confidence behind the wheel.

Key Features

Designed with high-grade materials for longevity and consistent performance, the AST 5300 Series Coilovers feature a robust construction that withstands the rigors of aggressive driving. The independent 3-way damping adjustment enables precise tuning of ride height, compression, and rebound damping, allowing you to optimize handling for different tracks or road conditions. The coilovers are engineered for easy installation and low maintenance, with tested components that have proven their reliability on renowned circuits like Nürburgring, Laguna Seca, and Macau. Their sleek, race-inspired design not only improves your vehicle’s stance but also enhances overall driving engagement and feedback. The adjustable features help you achieve the perfect balance between comfort and performance, making these coilovers a versatile upgrade for serious drivers.

Construction & Design

The AST 5300 Series Coilovers are constructed with high-strength steel bodies and precision-machined components, ensuring durability and consistent damping performance. The adjustable collars and threaded bodies allow for precise ride height adjustments without compromising structural integrity. The damping adjusters are designed for intuitive, independent control, enabling fine-tuning of your suspension setup to match your driving needs. The use of high-quality seals and coatings ensures resistance to corrosion and wear, even under demanding conditions.

Driving Feel & Feedback

These coilovers are designed to deliver exceptional handling response and driver feedback. The independent damping adjustments allow you to fine-tune the suspension for sharper turn-in, reduced body roll, and improved overall stability. The high-performance dampers help maintain tire contact with the road, providing confidence during aggressive cornering and high-speed maneuvers. The result is a more connected, engaging driving experience that enhances your vehicle’s dynamic capabilities.

Installation & Fitment

Installation of the AST 5300 Series Coilovers requires basic mechanical skills and appropriate tools. It is recommended to have a professional alignment performed after installation to ensure optimal handling and tire wear. Fitment has been verified for the 2021+ BMW M3 and M4 models, but users should verify compatibility with their specific vehicle configuration.

What’s Included

The package includes a complete set of front and rear coilovers, along with all necessary hardware for installation. Each coilover is pre-assembled and ready for quick installation, with damping adjustment controls easily accessible once installed.

Ideal For

This product is ideal for track enthusiasts, professional racers, and serious street drivers seeking adjustable suspension performance that supports aggressive driving, precise handling, and a customizable stance.