Tein GST76-91SS2 Street Advance Z Coilovers for 98-05 Lexus GS300/GS400/GS430

Vehicle Fitment

• 1998-2005 Lexus GS300 (3.0L I6, RWD)
• 1998-2000 Lexus GS400 (4.0L V8, RWD)
• 2001-2005 Lexus GS430 (4.3L V8, RWD)

Fitment Notes

• Reuses OEM factory upper mounts -- new top mounts are not included.
• Full front and rear coilover kit; ride height and damping adjustable.
• Street-oriented tuning with comfort-focused spring rates.
• Recommended for stock or moderately modified suspension geometry.
• Professional alignment required after installation.

Features

• 16-way adjustable damping -- tune stiffness for comfort or handling.
• Threaded shock bodies for precise height control front and rear.
• Twin-tube internal design for smooth street ride quality.
• Specially coated steel housings resist rust and corrosion.
• Progressive-rate springs balance control and ride comfort.
• Uses OE mounts and hardware for easy installation.
• Ideal for daily driving, canyon runs, and spirited street use.
• Manufactured in Japan and backed by Tein's limited warranty.

Specifications

• Part Number: GST76-91SS2
• Series: Street Advance Z
• Type: Full twin-tube coilover kit
• Damping Adjustment: 16 levels (manual knob)
• Height Adjustment Range: Approx. -1.6" to -3.5" front / -1.2" to -2.0" rear
• Spring Rate (Front/Rear): 10 kgf/mm / 6 kgf/mm (approx.)
• Mount Type: Reuse factory OEM mounts (not included)
• Warranty: 1-year limited (original purchaser)

Included Components

• 2x Front height & damping adjustable coilovers
• 2x Rear height & damping adjustable coilovers
• Spanner wrenches and adjustment tools
• Full hardware set and installation instructions

Product Description

The Tein GST76-91SS2 Street Advance Z Coilover Kit is a high-quality suspension upgrade for the 1998-2005 Lexus GS platform, including GS300, GS400, and GS430. Designed for balanced street comfort and improved cornering response, these coilovers feature 16-way damping adjustment and threaded shock bodies for precise ride height tuning. The twin-tube design delivers a smooth, compliant ride ideal for daily use.

Each kit reuses factory OEM upper mounts (top hats are not included), ensuring proper fitment with factory hardware. The corrosion-resistant coating and precision valving provide long-term reliability. Perfect for drivers seeking a comfortable, performance-oriented suspension upgrade that maintains street practicality while sharpening chassis feedback and stance.