2004- 2018 STi
TEIN FLEX Z COILOVERS
FLEX Z inherits all the features and quality of STREET FLEX but the adoption of a new platform allows its price to be set at an amazingly low range ($800 to $1,050). FLEX Z, of course, maintains the long-favored "Made in Yokohama" quality. Ride height adjustable shock absorber, fully loaded with TEIN's comprehensive technology, is now more affordable prices than ever. Sealed Structure
New Approach to Achieve Amazingly Low Prices
After careful consideration, we came to the conclusion that we need to establish new manufacturing systems and to develop a new product platform, in order to achieve low prices the customers demand. Until now, all TEIN dampers can be disassembled for overhaul; Now, we introduce our new "Sealed Structure" for the FLEX Z. Below is a brief description of this new production process for our FLEX Z at TEIN HQ Factory in Yokohama, Japan.
Top end of shell pipe is drawn, oil & gas are injected then the opening is completely sealed by the crimping process. This "Sealed Structure" process also reduces the production time, compared to the production of existing disassemblable dampers.
In addition, pursuit of efficient production system, such as use of seam welding, allows us to drastically reduce the production cost.
Twin-Tube System for Comfortable Ride on Streets!
Considering the use of larger tires/wheels and the lowered ride height, FLEX Z uses twin-tube system, in pursuit of ride comfort on streets.
In order to maintain the ride quality on streets with rough spots here and there, a shock absorber has to have sufficient stroke, be low-frictional and move smoothly.
As an oil chamber and a gas chamber are not arranged serially in a twin-tube system, it is easy to secure enough stroke. Also, low gas pressure keeps friction low.
Its smooth stroke movement makes it possible to follow rough and bumpy road surfaces quite well, offering supple ride at low speed and stable ride at high speed.
Full-Length System for Ride Height Adjustment w/ Minimal Change in Ride!
Full-length ride height adjustment system, used for FLEX Z, enables adjustment of ride height by adjusting the case length, without changing the damper stroke length and/or spring pre-load. This has the advantage that the change in ride quality is kept minimal when the height is adjusted.
This system not only makes it possible to maintain good balance between the low-down appearance and ride comfort, but also provides more setting choices for sport driving as well.
Damping Force Adjustable to Change Ride to Desired Settings!
FLEX Z has ever-popular 16-level damping force adjustment (comp./rebound together) feature with the use of needle valve. By turning the adjustment knob, damping force (stiffness) is adjusted linearly step by step, to change the ride and handling of the car to suit driver's needs/preferences.
Use of well-reputed "ADVANCE Needle" at the needle valve for oil flow control secures sufficient damping force adjustable range.
Whether it's for the handling characteristics of sport driving or for the ride quality according to numbers of passengers, finding the most desirable setting is easier than ever.
- Full-length ride height adjustment feature
- Twin-tube structure
- Damping force adjustment system
- Complete kit with upper mounts exclusively designed for this coil over system with the exception of some models
- 1-full car kit
- Ride height adjustment with little or no change in ride quality
- 16 level linear damping force adjustment system
- Complete suspension kit of 4 shock absorbers and 4 springs