ST Suspensions XA Coilover Kit

2011–2023 Dodge Challenger 3.6L V6 / 5.7L Hemi / 6.4L 392

Part #: 18227018

Overview

The ST Suspensions XA Coilover Kit is a high-performance suspension upgrade engineered specifically for Dodge Challenger models from 2011 through 2023, excluding SRT variants. Developed in partnership with KW Automotive, this coilover kit offers more than just adjustable ride height—it features full rebound damping control to customize your driving dynamics. Whether you want sharper handling for spirited driving or a smoother ride for daily use, the XA coilovers deliver enhanced agility, reduced body roll, and a lowered stance that elevates your Challenger’s road presence.

Designed for enthusiasts who demand both performance and versatility, the XA coilover kit allows quick and precise tuning of suspension stiffness, adapting seamlessly to various driving conditions without sacrificing comfort or control.

Key Features

The ST Suspensions XA Coilover Kit integrates advanced technology and thoughtful design to optimize your Dodge Challenger’s suspension performance:

• Adjustable front lowering range from 1.2" to 2.6"
• Adjustable rear lowering range from 1.8" to 3.1"
• Individual rebound damping adjustment using proven KW damping technology
• Damping adjustment accessible at the top of the chromed piston rod for quick, on-the-fly tuning
• Durable galvanized steel construction for corrosion resistance and long service life
• Pressure-resistant damper housings ensure consistent performance under demanding driving conditions
• Continuous threaded strut design allows height adjustment without coilover removal
• Improves handling precision, reduces body roll, and enhances track stability
• Compatible with both rear-wheel drive and all-wheel drive Dodge Challengers (non-SRT)

Construction & Design

The XA coilovers are crafted from high-quality galvanized steel components that resist corrosion and provide exceptional durability. Pressure-resistant damper housings maintain consistent damping performance, even during aggressive driving or track use. The continuous threaded strut design enables precise height adjustments without disassembling the suspension, simplifying installation and tuning. A chromed piston rod not only enhances corrosion resistance but also offers a smooth surface for the rebound damping adjustment mechanism, allowing quick and reliable tuning of suspension response.

Performance & Sound

With individual rebound damping adjustment, the ST XA coilover kit lets you tailor your Dodge Challenger’s handling characteristics to your preference. Increasing rebound force sharpens track stability and reduces body roll for a more controlled, responsive driving experience. Lowering rebound force softens the suspension, improving ride comfort for everyday driving. This adaptability makes the XA coilovers ideal for a wide range of driving styles—from aggressive street performance to comfortable cruising—while enhancing the overall connection and feedback through the steering wheel.

Installation & Fitment

The ST Suspensions XA Coilover Kit is a direct fit for 2011–2023 Dodge Challenger models equipped with rear-wheel or all-wheel drive, excluding all SRT variants. Vehicles with electronic damping control systems require deactivation before installation; a deactivation kit is available separately from KW Automotive (part #68510314). Installation involves replacing the factory struts and springs with the coilover assemblies. Thanks to the continuous thread design, height adjustments can be made without removing the coilovers. Professional installation is recommended to ensure proper setup and alignment for optimal performance.

What's Included

• Complete coilover system (front and rear coilovers)
• Adjustable spring plates for precise height tuning
• Rebound damping adjustment hardware integrated on piston rods
• Installation instructions
• ST Suspension’s Limited Manufacturer’s Warranty

Ideal For

The ST Suspensions XA Coilover Kit is perfect for Dodge Challenger owners seeking a versatile suspension upgrade that balances enhanced performance with everyday comfort. It is ideal for enthusiasts who want to lower their vehicle for improved aesthetics and handling without compromising ride quality. Whether you enjoy spirited backroad driving, occasional track days, or desire a more responsive and agile daily driver, the XA coilovers provide the adjustability and durability to meet your needs.

Important Notes

This coilover kit is not compatible with any Dodge Challenger SRT models. Vehicles equipped with electronic damping control must have the system deactivated prior to installation. The required deactivation kit is sold separately by KW Automotive (part #68510314).

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.