Tein Flex Z Coilover Kit - 1990-2005 Mazda Miata (NA/NB)

Transform your Miata's handling with the legendary Tein Flex Z Coilover Kit. Featuring 16-way damping adjustment, full ride height adjustability, and pillow ball upper mounts, the Flex Z delivers exceptional performance for street and track use. Tein's best-selling coilover combines comfort, adjustability, and proven performance in one complete package.

Key Features:

• 16-way damping force adjustment for precise tuning
• Full ride height adjustability (independent of preload)
• Pillow ball upper mounts for improved response
• Twin-tube construction for comfortable street driving
• Mono-tube rear shocks for better heat dissipation
• Durable powder-coated finish
• Complete kit - ready to install
• Tein quality engineering and manufacturing

Performance Benefits:

• 16-Way Damping Adjustment: Fine-tune compression and rebound for any driving condition
• Ride Height Adjustable: Lower your Miata 0.4-2.6 inches front, 0.4-2.4 inches rear
• Pillow Ball Mounts: Improved steering response and feedback
• Street & Track Ready: Comfortable for daily driving, capable on track
• Improved Handling: Dramatically better cornering and body control
• Quality Construction: Durable components built to last

Specifications:

• Brand: Tein
• Part Number: VSM40-C1SA1-C
• Product Line: Flex Z
• Damping Adjustment: 16-way (compression and rebound)
• Ride Height Adjustment: Yes (independent of preload)
• Front Construction: Twin-tube
• Rear Construction: Mono-tube
• Upper Mounts: Pillow ball (front and rear)
• Spring Rates: 6 kg/mm front, 4 kg/mm rear
• Ride Height Range (Front): -0.4" to -2.6"
• Ride Height Range (Rear): -0.4" to -2.4"
• Weight: 48.9 lbs (complete kit)

Fitment Information:

• Compatible Vehicles:
• 1990-1997 Mazda Miata (NA6C) - 1.6L
• 1994-1997 Mazda Miata (NA8C) - 1.8L
• 1999-2005 Mazda Miata (NB8C) - 1.8L
• Note: Fits all NA and NB Miata models. Does not fit NC (2006+) or ND (2016+) Miata.

What's Included:

• 4 x Tein Flex Z coilover assemblies (front and rear)
• Pillow ball upper mounts (front and rear)
• Adjustment wrenches
• Installation instructions

Installation Notes:

• Professional installation recommended
• Alignment REQUIRED after installation
• Installation time: approximately 4-6 hours
• Lift or jack stands required
• Spring compressor may be required
• Set damping to middle position (8 clicks) initially

16-Way Damping Adjustment:

The Flex Z features Tein's 16-way damping adjustment system, allowing you to fine-tune both compression and rebound damping. This gives you complete control over how the suspension responds to bumps, cornering, and weight transfer. Adjust from soft (1) for comfortable street driving to stiff (16) for aggressive track use.

Ride Height Adjustable (Independent of Preload):

Unlike cheaper coilovers that adjust ride height by changing spring preload, the Flex Z uses a true height-adjustable design. This means you can lower your Miata without affecting spring preload or suspension geometry. The result is better handling and more consistent performance at any ride height.

Pillow Ball Upper Mounts:

The Flex Z includes pillow ball upper mounts front and rear. These precision bearings provide improved steering response, better feedback, and reduced friction compared to rubber mounts. The pillow ball mounts are rebuildable and designed for long-term durability.

Twin-Tube Front, Mono-Tube Rear:

Tein uses twin-tube construction for the front struts to provide comfortable street driving characteristics, while the rear shocks use mono-tube construction for better heat dissipation during track use. This combination delivers the best of both worlds - comfort and performance.

Spring Rates:

The Flex Z uses 6 kg/mm front and 4 kg/mm rear spring rates, which are optimized for the Miata's lightweight chassis. These rates provide excellent handling without being overly harsh for street driving. The springs are powder-coated for corrosion resistance.

Why Tein Flex Z?

The Flex Z is Tein's best-selling coilover for good reason. It offers the perfect balance of adjustability, performance, and comfort at a competitive price point. Whether you're daily driving, autocrossing, or hitting the track, the Flex Z delivers consistent, reliable performance.

Street vs Track Setup:

• Street Setup: Damping at 4-8 clicks, moderate drop (1-1.5")
• Autocross Setup: Damping at 8-12 clicks, lower drop (1.5-2")
• Track Setup: Damping at 10-16 clicks, aggressive drop (2-2.5")

Adjustment Tips:

• Start with damping at middle position (8 clicks)
• Adjust in small increments (2-3 clicks at a time)
• Test drive after each adjustment
• Stiffer damping = better body control, harsher ride
• Softer damping = more comfortable, less responsive
• Front and rear can be adjusted independently

Installation Tips:

• Mark factory ride height before removal
• Take photos of factory setup for reference
• Clean threads before installation
• Set initial ride height conservatively
• Get professional alignment after installation
• Re-torque all hardware after 100 miles
• Check damping adjustment periodically

Perfect For:

• NA/NB Miata owners seeking adjustable coilovers
• Track day enthusiasts needing street/track capability
• Autocross competitors requiring precise tuning
• Daily drivers wanting improved handling and stance
• Anyone seeking proven Tein quality and performance

Perfect For: Miata NA/NB owners seeking the legendary Tein Flex Z with 16-way damping adjustment, ride height adjustability, and street/track versatility.

Pro Tip: Start with conservative settings and adjust gradually - the 16-way damping gives you incredible tuning flexibility.

Alignment Required: Professional alignment is mandatory after installation for proper handling and tire wear.

Transform your Miata with Tein Flex Z coilovers - 16-way damping, ride height adjustable, pillow ball mounts, street/track ready, proven performance.