Dinan Performance Spring Set - BMW M3 (E90) 2008-2011

Dinan's performance springs are CNC wound from high tensile chrome silicon wire and shot peened for stress relief, delivering carefully calibrated rates that sharpen steering response and cut body roll. The set lowers the E90 M3 by 1/2 inch front and rear for improved suspension geometry and a more aggressive stance, while reducing squat under acceleration and dive under braking. The springs are preset to prevent sag and work with both conventional and factory electronic shocks.

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