Great combination of bang-for-your-buck! This system costs much less than a full coilover swap, yet more aggressive than basic springs. These are easily adjusted by moving the lower spring seat up or down and will install using your existing, factory top hats.

About the Sealed Structure
The top end of the shell pipe is narrowed, oil and gas are injected, and the whole unit is sealed by crimping the metal.This new approach massively shortens the production process and cuts the final cost.

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. Thanks to this unique characteristic, you can negotiate gaps and bumps steadily on rough roads, meaning a smooth ride at low speed and stability at high speed.

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), TEIN springs are outstandingly sag-proof and boast extreme resiliency. Superior rust protection is ensured with a highly durable powder coating that does not peel or flake.

High-Performance Damper Oil
Since TEIN's damper oil maintains a stable viscosity in a broad temperature range, it sustains smooth stroke and reliable damping force in a variety of circumstances. Due to excellent anti-foaming properties, it's resistant to cavitation (bubble forming). Since it withstands high heat too, it's suitable for intense sport driving as well.

TEIN-Green Powder Coating
A bright TEIN-green powder paint is used on the shock absorber's shell case. TEIN's powder coating technique produces an extremely strong and durable barrier. Superior durability and corrosion resistance are achieved by TEIN's patented 2-Layer, 1-Bake powder coating method, which uses 2 layers of anti-rust paint on a blasted surface. (Japanese patent number 4347712)

Special Surface Treatment ZT Coating
TEIN's unique ZT Coating surface treatment on the ride height adjustment thread is abrasion resistant against gravel/debris, and further enhances its corrosion resistance.

With zero claims for stuck parts due to rust in 500,000 shock absorbers, TEIN shock absorbers are amazingly rustproof even in coastal areas or regions with heavy snowfall.