TEIN GSM80-91AS3 Street Advance Z Coilovers for 2004-2009 Mazda 3 BK3P

Vehicle Fitment

• 2004-2009 Mazda 3 (BK3P, FWD, 2.0L/2.3L)
• 2007-2009 Mazda Mazdaspeed3 (BK3P, FWD, 2.3L Turbo)

Features

• Street Advance Z performance coilover suspension system
• Ride height adjustable via ZT-coated threaded sleeves
• 16-stage damping force adjustment for tailored ride feel
• Twin-tube damper construction for balanced comfort and handling
• Powder-coated damper bodies for enhanced corrosion resistance
• OEM upper mount compatibility front and rear
• EDFC electronic damping compatibility (motor kit sold separately)
• Durable springs with high tensile steel construction

Specifications

• Part Number: GSM80-91AS3
• Front Spring Rate: 5.0 kgf/mm (≈280 lbs/in)
• Rear Spring Rate: 4.0 kgf/mm (≈224 lbs/in)
• Front Recommended Ride Height Drop: -20 to -40 mm
• Rear Recommended Ride Height Drop: -20 to -40 mm
• Front Full Adjustment Range: approx. -23 to -71 mm
• Rear Full Adjustment Range: approx. -15 to -57 mm
• Damping Force: Adjustable (16-stage)

Included Components

• 2x Front coilovers (strut + spring assembly)
• 2x Rear coilovers (shock + spring assembly)
• 4x Adjustable spring seats
• 2x Hook spanners
• 4x Dust boots
• 4x Spring locks
• Instruction manual

Product Description

The TEIN Street Advance Z Coilover Kit (Part No. GSM80-91AS3) is a performance-oriented suspension upgrade engineered for the 2004-2009 Mazda 3 BK3P chassis and 2007-2009 Mazda Mazdaspeed3. This coilover system enhances handling precision, improves cornering control, and allows drivers to lower their vehicles for a more aggressive stance and improved road feel. With 16 stages of damping adjustment and ride height tunability, drivers can fine-tune the balance between comfort and sportiness for daily driving or spirited road use.

Built with a durable twin-tube damper design and ZT-coated threaded sleeves for corrosion resistance, the Street Advance Z coilovers offer long-lasting performance. The kit maintains compatibility with TEIN's optional EDFC (Electronic Damping Force Control) system, enabling in-car damping adjustment when paired with the EDFC motor kit. Whether you are lowering your Mazda 3 for improved aesthetics or upgrading suspension performance for enhanced handling, this coilover kit delivers a versatile and adjustable solution.