2016-2021 Mazda MX-5 Miata ND Street Advance Z Coilovers by Tein

The Street Advance Z damper is the evolution of the popular super street coilover. Developed to provide a sporty ride and aggressive stance, along with 16-stage damping force adjustment using Tein's new Advance Needle technology. This gives the driver the ability to fine tune damping force change.

The shortened shell case design provides optimum damper stroke at lower than standard vehicle ride height. Vehicle ride height is adjustable via the ZT coated threaded sleeve and spring seats. Updated internal components and external coatings increase durability and product life. Street Advance Z dampers are great for daily and spirited use, for all types of drivers.

Features

• Thread-Type Ride Height Adjustment: The ride height can be adjusted by moving the lower spring seat up or down. Characteristic of this system are its simple structure and ease of use.
• Twin-Tube System: Compared to the regular mono-tube system, twin-tube attains longer stroke with a smaller repulsive force, resulting in high ride comfort. You can negotiate gaps and bumps steadily on rough roads, meaning a smooth ride at low speed and stability at high speed.
• Uses OE Mounts: STREET ADVANCE Z and STREET BASIS Z use the vehicle's original upper mounts (not included in our product kit).
• Optimal Dust Boot: Thanks to its smooth compression and high durability, the dust boot guards the piston rod from damage, and keeps foreign material out of the shock absorber. (Some vehicles use their OE dust boots)
• No-Sag Spring: Cold formed with SAE9254 steel (minimum tensile strength 200 kgf/mm2), our springs are outstandingly sag-proof and boast extreme resiliency. Our high-quality springs can be used without worries, in any conditions.
• High-Performance Damper Oil: Since TEIN's maintains a stable viscosity, sustaining smooth stroke and reliable damping force in a variety of circumstances. Due to excellent anti-foaming properties, it's resistant to cavitation (bubble forming). Furthermore, the damper oil keeps up its superior performance long-term, because it's resistant to deterioration over time.
• Rust-Proofing: A bright TEIN-green powder paint is used on the shock absorber's shell case. Our powder coating technique produces an extremely strong and durable barrier. Superior durability and corrosion resistance are achieved by TEIN's patented coating method, which uses 2 layers of anti-rust paint on a blasted surface.
• Special Surface Treatment 'ZT Coating': Our unique ZT Coating surface treatment on the ride height adjustment thread further enhances its corrosion resistance. TEIN shock absorbers are amazingly rustproof.
• Damping Force Adjustment: Modify ride comfort and handling according to your preference, changing the properties of the shock absorber with the adjustment dial.

Please Note: Generic image used. The product you receive may not match what is shown.

Applications

• 2016 - 2021 Mazda MX-5 Miata
• 2017 - 2021 Mazda MX-5 Miata RF

Specifications

• Front Spring Rate (kgf/mm): 6.0
• Front Spring Rate (lbs/in): 336
• Rear Spring Rate (kgf/mm): 3.5
• Rear Spring Rate (lbs/in): 196

What's In The Box?

• 2 - Street Advance Z Front Coilovers
• 2 - Street Advance Z Rear Coilovers

Warranty

• Manufacturer Standard Warranty