HKS Hipermax S Coilover Kit - Subaru Impreza Wrx Sti GDB(E-G) 2005-2007

HKS Hipermax S full coilover kit for the 2005–2007 Subaru Impreza WRX STI (GDB chassis, Applied E through G). 30-level damping adjustment, large-diameter monotube damper, and Dual PVS (Dual Preload Valve System) to suppress excess damping at higher piston speeds. Spring rate: front 69 N/mm (7 kgf/mm), rear 49 N/mm (5 kgf/mm); spring lengths 200mm front and 250mm rear. Length-adjustable shock bodies for ride height. Comes pre-assembled with top hats, spanner wrenches, and damper adjustment tool. Made in Japan. 3-year / 60,000 km warranty.

Specifications

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