ST XA Height Adjustable Coilovers - Chrysler 300 / Dodge Charger RWD 2011-2023

ST XA coilovers pair a wide ride height adjustment range with 16 distinct clicks of adjustable rebound damping, so ride quality and body control can be dialed in by hand. The adjustable spring perch is molded from friction-optimized polyamide composite with an embedded stainless steel insert, which keeps the perch turning freely and prevents corrosion between the strut and the perch. Galvanized zinc coated steel strut housings, a multi-layered pressure-resistant sealing package, a mono-block guide system and a low-friction piston band protect the hardened chrome piston rod, while elastomer bump stops with an integrated dust protection system act as dynamic load limiters. Every kit is hand built and shock dyno tested by KW in Fichtenberg, Germany, and ships preset to ST's factory recommended damper settings along with a damper setup manual.

Specifications

Documents: Installation Instructions (PDF)  |  Installation Instructions 2 (PDF)  |  Installation Instructions 3 (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