ST Suspensions XA Coilovers - Ford Mustang S550 2018-2024

ST XA adjustable coilovers for the 2018-2024 Ford Mustang (S550, non-electronic dampers) combine a wide range of ride-height adjustment with 16-click adjustable rebound damping, letting you tune driving dynamics from comfortable to sporty by hand. Each kit uses zinc-galvanized steel struts, a friction-optimized polyamide composite spring perch with a stainless-steel insert for corrosion-free height adjustment, and an elastomer bump stop with integrated dust protection. Built by hand by KW in Fichtenberg, Germany, every damper is shock-dyno tested and ships preset to ST's recommended damper settings.

Specifications

Documents: Installation Instructions (PDF)

This part fits:

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy