TEIN GSS50-81SS2 Street Basis Z Coilovers for 2002-2008 Subaru Forester AWD

Vehicle Fitment

• 2002-2007 Subaru Forester (SG5, AWD, 2.0L/XT)
• 2003-2008 Subaru Forester (SG6, AWD, 2.5L)
• 2004-2007 Subaru Forester (SG9 STI Version, AWD)

Features

• TEIN Street Basis Z ride-height adjustable coilover suspension system
• Twin-tube damper design tuned for comfortable everyday driving
• ZT-coated threaded spring seats for corrosion-resistant height adjustment
• Balanced spring rates for improved handling and ride quality
• Powder-coated damper bodies for enhanced durability
• Full-length dust boots protect damper shafts
• OEM upper mount reuse for simplified installation
• No-sag coil springs help maintain height over time

Specifications

• Part Number: GSS50-81SS2
• Front Spring Rate: approx. 4 kgf/mm (≈224 lbs/in)
• Rear Spring Rate: approx. 4 kgf/mm (≈224 lbs/in)
• Damping Adjustment: Fixed (non-adjustable)
• Ride Height Adjustable: Yes (front & rear)
• Front Lowering Range: approx. -1.9" to -3.7" (-49 mm to -95 mm)
• Rear Lowering Range: approx. -1.6" to -3.7" (-41 mm to -95 mm)
• Upper Mounts: Reuse OEM front & rear
• EDFC Compatible: No

Included Components

• 2x Front coilover assemblies
• 2x Rear coilover assemblies
• 4x Adjustable spring seats
• 4x Spring locks
• 4x Dust boots
• 2x Hook spanners
• 4x Rubber bump stops
• 4x Delrin thrust washers
• 1x Instruction manual

Product Description

The TEIN Street Basis Z Coilover Kit (Part No. GSS50-81SS2) is a ride-height adjustable suspension upgrade engineered for Subaru Forester models from 2002 through 2008 across SG5, SG6, and SG9 chassis variants. Designed as an entry-level performance coilover system, this kit enhances handling precision and stance while maintaining everyday ride comfort. The twin-tube damper design paired with balanced spring rates offers improved stability and responsiveness over stock suspension.

Height adjustment is achieved via TEIN's ZT-coated threaded spring seats, allowing drivers to tune their vehicle's stance and ride height to preference. Powder-coated damper bodies and full-length dust boots increase durability and help protect internal components from road debris. OEM upper mounts are reused during installation for simpler fitment. While damping is fixed (non-adjustable), the kit's design focuses on delivering a refined balance between ride quality and enhanced road feel - making it an ideal choice for daily drivers seeking improved dynamics and a sportier appearance.