Tein Street Advance Z Coilover Kit - 2008-2014 Subaru WRX (GEE / GHE / GRE / GVE)

Elevate your WRX's handling with the Tein Street Advance Z coilover kit. Featuring mono-tube damper construction, 16-way damping adjustment, EDFC compatibility for electronic damping control, and full height adjustability, the Street Advance Z delivers a significant step up in performance and versatility for the 2008-2014 Subaru WRX across all GEE, GHE, GRE, and GVE chassis variants.

Key Features:

• Complete coilover suspension kit
• Mono-tube damper construction
• 16-way damping adjustment
• EDFC compatible (Electronic Damping Force Controller)
• Height adjustable design
• High-tensile steel springs
• Includes front and rear coilovers
• All mounting hardware included
• Tein quality and engineering

Performance Benefits:

• Superior Handling: Mono-tube construction provides more precise damping response
• 16-Way Damping: Fine-tune ride quality from comfort to performance
• EDFC Ready: Add electronic damping adjustment without removing wheels
• Adjustable Height: Dial in your preferred stance and handling balance
• Reduced Body Roll: Improved cornering composure over factory suspension
• Complete Kit: Everything needed for a full suspension upgrade

Specifications:

• Brand: Tein
• Part Number: GSS80-9USA2
• Product: Street Advance Z Coilover Kit
• Series: Street Advance Z
• Damper Type: Mono-tube
• Damping Adjustment: 16-way
• EDFC Compatible: Yes
• Height Adjustment: Yes (full-length adjustable)
• Spring Type: High-tensile steel
• Weight: 54.3 lbs (complete kit)
• Barcode: 4589533496239

Fitment Information:

• 2008-2014 Subaru WRX (GEE) - Impreza WRX sedan
• 2008-2014 Subaru WRX (GHE) - Impreza WRX hatchback
• 2008-2014 Subaru WRX (GRE) - Impreza WRX STI sedan
• 2008-2014 Subaru WRX (GVE) - Impreza WRX STI hatchback
• Note: Verify your chassis code before ordering
• Installation: Professional installation recommended

What's Included:

• Tein Street Advance Z coilovers (front pair)
• Tein Street Advance Z coilovers (rear pair)
• Mounting hardware
• Adjustment wrenches
• Installation instructions
• Note: EDFC controller sold separately

Installation Notes:

• Professional installation recommended
• Remove factory suspension components
• Install Tein coilovers using included hardware
• Set initial ride height
• Set initial damping (start at mid-range, 8 of 16)
• Torque all fasteners to manufacturer specifications
• Alignment required after installation
• Allow suspension to settle before final height adjustment
• Re-check alignment after settling period

Street Advance Z Series - Premium Street Performance:

The Street Advance Z is Tein's premium street-focused coilover line, positioned above the entry-level Flex Z and designed for enthusiasts who want meaningful performance gains with daily drivability. The Street Advance Z's mono-tube construction and EDFC compatibility set it apart from the Flex Z, providing more precise damping response and the option for electronic damping adjustment. For WRX owners who want a genuine performance upgrade that works equally well on the street and at track days, the Street Advance Z is the ideal choice.

Mono-Tube Damper Construction:

The Street Advance Z uses mono-tube damper construction, which provides several advantages over twin-tube designs. A mono-tube damper has a single working cylinder with the piston and gas charge separated by a floating piston. This design provides more precise and responsive damping compared to twin-tube designs, as the piston has more working area and the gas charge is better isolated from the oil. Mono-tube dampers also run cooler under sustained use, making them better suited for track day applications. The mono-tube construction is a key differentiator between the Street Advance Z and the entry-level Flex Z.

16-Way Damping Adjustment:

The 16-way damping adjustment allows precise tuning of the suspension between soft and firm settings. The adjustment is made via a knob at the top of each damper, allowing easy changes without tools. Starting at the mid-range setting (8 of 16) and adjusting from there is recommended. Softer settings (1-7) provide more comfort for daily driving, while firmer settings (9-16) improve body control for spirited driving and track use. The 16 settings provide enough range to find the ideal balance between comfort and performance for your specific driving style.

EDFC Compatibility - Electronic Damping Control:

The Street Advance Z is compatible with Tein's EDFC (Electronic Damping Force Controller) system, which allows damping adjustment from inside the cabin without stopping or removing wheels. The EDFC motor attaches to the damper adjustment knob and is controlled via a dashboard-mounted controller. This allows real-time damping adjustment while driving, enabling you to soften the suspension for rough roads and firm it up for spirited driving or track use without leaving the driver's seat. The EDFC is sold separately and is one of the key advantages of the Street Advance Z over the Flex Z.

GEE / GHE / GRE / GVE Chassis Coverage:

This kit covers all four chassis variants of the 2008-2014 Subaru WRX/STI generation. The GEE (WRX sedan) and GHE (WRX hatchback) are the standard WRX variants with the EJ255 turbocharged engine. The GRE (STI sedan) and GVE (STI hatchback) are the higher-performance STI variants with the EJ257 engine and upgraded suspension. The Tein Street Advance Z is engineered to fit all four chassis variants, making it a versatile choice regardless of your specific WRX body style or trim level. Always verify your chassis code before ordering.

Street Advance Z vs. Flex Z - Which is Right for You?

If you're deciding between the Street Advance Z and the Flex Z for your WRX, here are the key differences. The Street Advance Z uses mono-tube dampers (more precise, better for track use) and is EDFC compatible (electronic damping adjustment). The Flex Z uses twin-tube dampers and is not EDFC compatible. For daily-driven WRXs that occasionally see track days, the Street Advance Z is the better choice. For primarily street-driven WRXs on a tighter budget, the Flex Z provides excellent value. The Street Advance Z's EDFC compatibility is a significant advantage for enthusiasts who want the convenience of in-cabin damping adjustment.

Why Tein?

Tein is a world-renowned manufacturer of suspension components, known for quality engineering and proven performance across all product lines. Their Street Advance Z series is particularly well-regarded for delivering genuine performance improvements with daily drivability, making it one of the most popular coilover choices for the WRX platform. Tein's decades of experience with the Subaru WRX platform ensure their coilovers are engineered to the correct specifications for reliable, high-performance operation.

Installation Tips:

• Professional installation and alignment strongly recommended
• Start damping at mid-range (8 of 16) and adjust from there
• Set initial height conservatively - can adjust after settling
• Allow 200-300 km for suspension to settle before final adjustment
• Re-check alignment after settling period
• Consider EDFC for convenient in-cabin damping adjustment
• Clean threads and apply anti-seize for easy future adjustment

Perfect For:

• 2008-2014 Subaru WRX (GEE/GHE) owners seeking premium coilover upgrade
• 2008-2014 Subaru WRX STI (GRE/GVE) owners wanting improved handling
• Street and track day WRX builds wanting mono-tube performance
• Enthusiasts wanting EDFC electronic damping capability
• WRX owners seeking the best balance of street comfort and track performance

Perfect For: 2008-2014 Subaru WRX and STI (GEE/GHE/GRE/GVE) owners seeking Tein Street Advance Z coilovers for mono-tube performance, 16-way damping, and EDFC compatibility.

Pro Tip: Add the Tein EDFC system when you install the Street Advance Z - the ability to adjust damping from inside the cabin without stopping is a game-changer for both daily driving and track days.

Complete Kit: Front and rear coilovers. Mono-tube construction. 16-way damping. EDFC compatible (sold separately). Height adjustable. Alignment required after installation.

Transform your WRX's handling with Tein Street Advance Z coilovers - mono-tube precision, 16-way damping, EDFC ready, proven Tein quality.