Tein VSQ74-C1AA3-C Flex Z Coilovers 2014-2017 Lexus IS250/IS350/IS200t RWD

Vehicle Fitment

• 2014-2016 Lexus IS250 (GSE30L, RWD, 2.5L V6 4GR-FSE) - All Trims including F Sport
• 2014-2017 Lexus IS350 (GSE31L, RWD, 3.5L V6 2GR-FSE) - All Trims including F Sport
• 2016-2017 Lexus IS200t (ASE30L, RWD, 2.0L Turbo 8AR-FTS) - All Trims including F Sport
• 2013-2016 Lexus IS300h (AVE30, RWD, 2.5L Hybrid) - All Trims including F Sport

Fitment Notes

• Front lower mount: bottom eye/bush style only - does NOT fit vehicles with a fork-style front lower mount; verify front lower mount configuration before ordering
• RWD models only - does not fit AWD IS variants
• Fits all IS250, IS350, IS200t, and IS300h trim levels including F Sport across the 3rd-generation (GSE30L/GSE31L/ASE30L/AVE30) platform
• Ride height adjustment range varies by sub-model - see Specifications below
• EDFC compatible - requires EDFC Motor Kit EDK05-12120 (sold separately)

Features

• Full-length ride height adjustment maintains shock travel and ride quality across the full lowering range
• 16-way damping force adjustment (compression and rebound together) via top-mounted click adjuster
• Front camber-adjustable pillowball upper mounts included for precise alignment correction at lowered ride heights
• High spring rates tuned for the 3rd-gen IS platform's MacPherson front and multilink rear suspension geometry across all engine variants
• Twin-tube damper construction delivers a smooth, composed ride suited to the IS series' sport-luxury character
• EDFC compatible for optional in-cabin electronic damping adjustment (EDK05-12120, sold separately)
• ZT-coated threaded sleeve and TEIN-green powder-coated springs and brackets for long-term corrosion resistance

Specifications

• Front Spring Rate: 504 lbs/in (9.0 kgf/mm)
• Rear Spring Rate: 616 lbs/in (11.0 kgf/mm)
• Front Ride Height Adjustment Range (IS200t ASE30L): -0.6 to -3.7 in
• Rear Ride Height Adjustment Range (IS200t ASE30L): -0.6 to -2.4 in
• Front Ride Height Adjustment Range (IS250 GSE30L): -0.6 to -4.3 in
• Rear Ride Height Adjustment Range (IS250 GSE30L): -0.1 to -2.1 in
• Recommended Front Drop (all sub-models): -1.0 to -1.8 in (-25mm to -45mm)
• Recommended Rear Drop (all sub-models): -0.6 to -1.4 in (-15mm to -35mm)
• Damping Adjustment: 16-Way (Compression and Rebound Together)
• Front Upper Mount: Camber-Adjustable Pillowball (included)
• Rear Upper Mount: Reinforced Rubber (included)
• EDFC Compatible: Yes (EDK05-12120, sold separately)
• Chassis Codes: GSE30L / GSE31L / ASE30L / AVE30
• Drivetrain: RWD

Included Components

• 4x Coilover Damper Assemblies (2x Front, 2x Rear)
• 4x Main Springs
• 4x Bump Rubbers
• 4x Spring Seats
• 4x Seat Locks
• 2x Front Camber-Adjustable Pillowball Upper Mounts
• 2x Rear Reinforced Rubber Upper Mounts
• 2x Hook Spanners
• 1x Instruction Manual

Product Description

The Tein VSQ74-C1AA3-C Flex Z is a complete coilover kit for the 3rd-generation Lexus IS platform - covering the 2014-2016 IS250 (GSE30L), 2014-2017 IS350 (GSE31L), 2016-2017 IS200t (ASE30L), and 2013-2016 IS300h (AVE30), all in RWD configuration and all trims including F Sport. With 504 lbs/in front and 616 lbs/in rear spring rates, front camber-adjustable pillowball upper mounts, and 16-way damping adjustment, this kit delivers meaningful stance improvement and sharper handling response across all 3rd-gen IS variants.

Built in Yokohama, Japan with twin-tube construction and Tein's sealed damper structure, the Flex Z requires a bottom eye/bush-style front lower mount - confirm your front lower mount type before ordering, as fork-style front mounts are not compatible. Ride height adjustment ranges vary between sub-models; consult the per-model specifications above before setting initial ride height. EDFC installation requires Motor Kit EDK05-12120, sold separately. Professional installation and wheel alignment are recommended after fitment.