HKS Yamaha Performance Damper - Subaru WRX STI VA 2015-2020

The Performance Damper is a Yamaha developed body damper that HKS supplies and tunes application by application, and it is not a suspension shock absorber. Where a suspension damper works over centimeters of wheel travel, this unit bolts to the vehicle structure and works over micrometer scale displacement, absorbing the flex and the small vibrations the body picks up from the road surface and the tires. HKS states that the result is measurably less body deflection and less slop under external input, which sharpens handling response and settles ride quality at the same time. Tuning is done per chassis rather than sold as a universal fit, and HKS positions it to work alongside its HIPERMAX coilover range.

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