ST Suspensions ST XA Coilover Kit

2011–2023 Chrysler 300 RWD / Dodge Charger RWD

18227019

Overview:

The ST Suspensions ST XA Coilover Kit is engineered for Chrysler 300 and Dodge Charger rear-wheel-drive models from 2011 through 2023. Designed for enthusiasts who demand more than just adjustable ride height, this coilover kit offers a comprehensive solution to enhance both the aesthetics and driving dynamics of your vehicle. With its wide range of height adjustment and finely tunable damping settings, the ST XA coilovers allow you to tailor your ride for improved road control without sacrificing comfort.

Whether you seek a sportier stance or a balanced blend of comfort and performance, the ST XA kit provides the precision and durability needed to elevate your driving experience. Built with high-quality materials and tested extensively, these coilovers deliver consistent performance and long-lasting reliability.

Key Features:

The ST XA Coilover Kit combines advanced technology and thoughtful design to give you full control over your vehicle’s suspension characteristics. Key features include:

• Wide range of ride height adjustment: Front lowering from 1.2 to 2.6 inches, rear lowering from 1.4 to 2.6 inches
• 16-click adjustable rebound damping for precise tuning of ride comfort and handling
• Durable composite spring perch with embedded stainless steel insert to prevent corrosion and ensure strength
• Progressive spring rates front and rear for a smooth yet responsive ride
• Galvanized zinc-coated steel struts for enhanced corrosion resistance
• Integrated dust protection system and multi-layered sealing package to safeguard piston rods and internal components
• Preset to factory-recommended damper settings, verified on KW shock dynos for consistent quality
• Elastomer bump stops that act as dynamic load limiters while maintaining ride quality
• Hand-built in Germany by KW experts, backed by a 5-year limited warranty with unlimited mileage

Construction & Design:

The ST XA coilovers feature a robust construction that balances strength, durability, and corrosion resistance. The adjustable spring perch is crafted from a wear-resistant, friction-optimized polyamide composite material, reinforced with a stainless steel insert to prevent oxidation and provide structural integrity. This design ensures smooth, reliable ride height adjustments over the life of the product.

The struts are made from galvanized zinc-coated steel, offering superior protection against rust and environmental damage. The piston rods are hardened chrome, shielded by a dust protection system and sealed with a multi-layered, pressure-resistant package to maintain optimal damper performance under all conditions. This meticulous engineering results in a coilover kit that withstands daily driving and spirited use alike.

Installation & Fitment:

The ST XA Coilover Kit is a direct-fit suspension upgrade for 2011–2023 Chrysler 300 RWD and Dodge Charger RWD models, designed to replace factory struts and springs without the need for modifications. Installation requires standard suspension tools and alignment after setup to ensure optimal handling and tire wear. Vehicles equipped with Electronic Damper Control (EDC) systems are not compatible with this kit.

What's Included:

• Front and rear coilover struts with progressive springs
• Adjustable composite spring perches with stainless steel inserts
• Elastomer bump stops with integrated dust protection
• Detailed damper setup manual with factory-recommended settings
• All necessary mounting hardware

Ideal For:

The ST XA Coilover Kit is ideal for Chrysler 300 and Dodge Charger owners seeking a versatile suspension upgrade that enhances both appearance and driving dynamics. It suits drivers who want precise control over ride height and damping characteristics, whether for daily driving comfort, spirited street performance, or occasional track use. This kit is perfect for enthusiasts who value German engineering quality and long-term durability in their suspension components.

ST Suspensions offers suspension components designed for improved stance and control. Built for enthusiasts who care about feedback and control, their components target ride, handling, and adjustability for everything from daily drivers to dedicated track builds. If you want a more planted feel, cleaner alignment behavior, and confidence in corners, ST Suspensions is a strong choice.