Tein VSN20-C1SA4-C Flex Z Coilovers 1989-1998 Nissan 240SX/180SX S13 RWD

Vehicle Fitment

• 1989-1994 Nissan 240SX - All Body Styles: Coupe, Hatchback, Convertible (S13, RWD, 2.4L I4 KA24E / KA24DE)
• 1989-1993 Nissan Silvia (S13 / PS13, RWD, 1.8L CA18DE / 2.0L SR20DE / SR20DET)
• 1989-1998 Nissan 180SX (RS13 / RPS13, RWD, 1.8L CA18DE / 2.0L SR20DE / SR20DET)

Fitment Notes

• Direct bolt-on for all US-market 240SX body styles (coupe, hatchback, convertible) and compatible with JDM Silvia S13 and 180SX
• Front camber-adjustable pillowball upper mounts fit under the factory strut towers without modification
• Plug-and-play fitment - no additional conversion parts or brackets required
• EDFC compatible - requires EDFC Motor Kit EDK05-12140 (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 - no strut tower modification needed
• Spring rates tuned for the S13's MacPherson front and multilink rear suspension geometry and well-balanced RWD chassis character
• Twin-tube damper construction delivers a smooth, compliant ride suited to the S13's versatile street and drift platform
• EDFC compatible for optional in-cabin electronic damping adjustment (EDK05-12140, sold separately)
• ZT-coated threaded sleeve and TEIN-green powder-coated springs and brackets for long-term corrosion resistance

Specifications

• Front Spring Rate: 392 lbs/in (7.0 kgf/mm)
• Rear Spring Rate: 280 lbs/in (5.0 kgf/mm)
• Front Ride Height Adjustment Range: -0.1 to -2.9 in (-3mm to -74mm)
• Rear Ride Height Adjustment Range: +0.1 to -4.5 in (+2mm to -114mm)
• Front Spring Free Length: 175mm | Spring ID: 65mm
• Rear Spring Free Length: 225mm | Spring ID: 70mm
• Damping Adjustment: 16-Way (Compression and Rebound Together)
• Front Upper Mount: Camber-Adjustable Pillowball (included)
• Rear Upper Mount: Reinforced Rubber (included)
• EDFC Compatible: Yes (EDK05-12140, sold separately)
• Chassis Codes: S13 / PS13 / RS13 / RPS13
• 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 VSN20-C1SA4-C Flex Z is a complete coilover kit for the 1989-1994 Nissan 240SX (S13), 1989-1993 Nissan Silvia S13, and 1989-1998 Nissan 180SX - covering all body styles and engine configurations on the iconic S13 platform. With 392 lbs/in front and 280 lbs/in rear spring rates tuned for the S13's MacPherson front and multilink rear geometry, front camber-adjustable pillowball upper mounts that bolt directly under the factory strut towers, and a wide rear ride height adjustment range suited to both street builds and aggressive setups, this kit delivers the stance and handling versatility the S13 chassis is renowned for.

Built in Yokohama, Japan with twin-tube construction and Tein's sealed damper structure, the Flex Z is a direct plug-and-play bolt-on across all 240SX, Silvia S13, and 180SX variants. EDFC installation requires Motor Kit EDK05-12140, sold separately. Professional installation and wheel alignment are recommended after fitment.