ST Suspensions X Coilovers - BMW 328i 2007-2013

The ST X coilover kit is a ride-height-adjustable suspension system engineered by ST suspensions and hand-built by KW in Fichtenberg, Germany for the 2007-2013 BMW 328i. Galvanized zinc-coated steel struts and a friction-optimized polyamide composite spring perch with a stainless-steel insert resist corrosion for long-lasting height adjustability, while an elastomer bump stop with an integrated dust protection system shields the hardened chrome piston rod. Dampers and spring rates are tuned specifically for this application to balance sporty handling with everyday road comfort, and each unit is shock-dyno tested before shipping.

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