TEIN GSSB0-8USS2 Street Basis Z Coilovers for 2015-2024 Subaru WRX/STI AWD

Vehicle Fitment

• 2015-2024 Subaru WRX AWD (VA/VAG chassis, 2.0L H4)
• 2015-2024 Subaru WRX STI AWD (VA/VAF chassis, 2.5L H4)

Features

• TEIN Street Basis Z ride-height adjustable coilover suspension
• Twin-tube damper design tuned for smooth everyday street comfort
• ZT-coated threaded spring seats for durable height adjustment
• Powder-coated damper bodies for corrosion resistance
• OEM upper mount reuse for easy installation (mounts not included)
• No-sag coil springs engineered to help maintain ride height
• Full-length dust protection boots resist debris intrusion
• Balanced spring rates for improved handling without harshness

Specifications

• Part Number: GSSB0-8USS2
• Front Spring Rate: approx. 7 kgf/mm (≈392 lbs/in)
• Rear Spring Rate: approx. 6 kgf/mm (≈336 lbs/in)
• Damping Adjustment: Fixed (non-adjustable)
• Ride Height Adjustable: Yes (front & rear via threaded seats)
• Front Lowering Range: approx. -0.9" to -2.8" (-22 mm to -70 mm)
• Rear Lowering Range: approx. 0.0" to -3.1" (0 mm to -79 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. GSSB0-8USS2) is a height-adjustable suspension upgrade designed for AWD Subaru WRX and WRX STI models from 2015 through 2024. This Street Basis Z series coilover system focuses on giving your vehicle a lowered stance and enhanced handling over stock suspension while maintaining comfortable everyday ride quality. The twin-tube damper construction and carefully matched spring rates provide confident control without harshness, making it ideal for daily drivers and enthusiasts alike who want a blend of style and performance.

Ride height adjustment is achieved through corrosion-resistant ZT-coated threaded spring seats, allowing you to dial in your desired stance for improved aesthetics and handling. The kit reuses OEM upper mounts for straightforward installation, and full-length dust boots help protect internal components from road debris. While damping is fixed and optimized for street use, the balanced design delivers a refined balance between comfort and responsiveness. This makes the GSSB0-8USS2 coilovers a cost-effective choice if you're seeking enhanced handling and lowered ride height without sacrificing everyday comfort.