Tein VSS64-C1SA4-C Flex Z Coilovers 2005-2007 Subaru WRX STI GDF AWD

Vehicle Fitment

• 2005 Subaru Impreza WRX STI (GDF, AWD, 2.0L EJ207) - PCD 5x114.3
• 2006-2007 Subaru Impreza WRX STI (GDF, AWD, 2.0L EJ207) - PCD 5x114.3

Fitment Notes

• PCD 5x114.3 models only - does NOT fit WRX STI models with PCD 5x100 bolt pattern
• AWD only - fits all 2005-2007 US-spec WRX STI variants on the GDF chassis
• Front ride height adjustment range differs slightly between 2005 and 2006-2007 models - see Specifications below
• EDFC compatible - requires EDFC Motor Kit EDK05-12140 and Front Strut Extension Kit EDK06-K4474 (both sold separately)

Features

• Full-length ride height adjustment maintains shock travel and ride quality across the full lowering range
• 16-way damping force adjustment (compression and rebound together) via top-mounted click adjuster
• Front camber-adjustable pillowball upper mounts included for precise alignment correction at lowered ride heights
• Spring rates tuned for the GDF's MacPherson front and multilink rear suspension geometry and AWD turbocharged character
• Twin-tube damper construction delivers a smooth, composed ride suited to both daily driving and track use on the STI platform
• EDFC compatible for optional in-cabin electronic damping adjustment (requires EDK05-12140 + EDK06-K4474, sold separately)
• ZT-coated threaded sleeve and TEIN-green powder-coated springs and brackets for long-term corrosion resistance

Specifications

• Front Spring Rate: 336 lbs/in (6.0 kgf/mm)
• Rear Spring Rate: 280 lbs/in (5.0 kgf/mm)
• Front Ride Height Adjustment Range (2005): -0.2 to -3.7 in
• Front Ride Height Adjustment Range (2006-2007): -0.3 to -3.9 in
• Rear Ride Height Adjustment Range (all years): +0.7 to -4.5 in
• Damping Adjustment: 16-Way (Compression and Rebound Together)
• Front Upper Mount: Camber-Adjustable Pillowball (included)
• Rear Upper Mount: Reinforced Rubber (included)
• EDFC Compatible: Yes (requires EDK05-12140 + EDK06-K4474, sold separately)
• Chassis Code: GDF
• Wheel Bolt Pattern: PCD 5x114.3
• Drivetrain: AWD
• Engine: 2.0L Turbo EJ207

Included Components

• 4x Coilover Damper Assemblies (2x Front, 2x Rear)
• 4x Main Springs
• 4x Bump Rubbers
• 4x Spring Seats
• 4x Seat Locks
• 2x Front Camber-Adjustable Pillowball Upper Mounts
• 2x Rear Reinforced Rubber Upper Mounts
• 2x Hook Spanners
• 1x Instruction Manual

Product Description

The Tein VSS64-C1SA4-C Flex Z is a complete coilover kit for the 2005-2007 Subaru WRX STI (GDF) with 5x114.3 bolt pattern - the US-spec STI generation that made the switch from the earlier 5x100 fitment. With 336 lbs/in front and 280 lbs/in rear spring rates, front camber-adjustable pillowball upper mounts, and wide full-length ride height adjustability, this kit delivers stance improvement and handling refinement well-suited to the GDF STI's AWD turbocharged performance character.

Built in Yokohama, Japan with twin-tube construction and Tein's sealed damper structure, this kit is for PCD 5x114.3 GDF STI models only - STI variants with the 5x100 bolt pattern are not compatible. EDFC installation requires both Motor Kit EDK05-12140 and Front Strut Extension Kit EDK06-K4474, both sold separately. The front ride height adjustment range differs slightly between the 2005 and 2006-2007 model years. Professional installation and wheel alignment are recommended after fitment.