As we had already mentioned, development has started on our FLEX Z coilovers, a more affordable offering of our popular STREET FLEX coilovers. But, we haven’t stopped there with new products for 2015!

At around the same time we start bringing in our FLEX Z coilovers (mid-Spring), we should also have a few applications of our STREET BASIS Z & STREET ADVANCE Z coilovers! However, we’re not too sure the timing, as the new STREET BASIS Z & STREET ADVANCE Z will be coming from our newly established TEIN China plant.

The difference between current STREET BASIS and STREET ADVANCE coilovers from the new “Z” line is that the Z line are non-rebuildable coilovers. Again, this follows in suit to the STREET FLEX -> FLEX Z changes. All other features of the two entry-level coilover lines are the same.

STREET BASIS Z is strictly a ride height adjustable kit. This makes it a perfect setup for the daily driver looking for an increase in handling performance without compromising comfort for everyday use. For many of you considering a lowering spring + performance shock absorber combination, the STREET BASIS Z makes even more sense as we select appropriate spring rates and valve our dampers to match. No guesswork on the end-users part in trying to match one brand of springs to another brand of shock absorbers. The added height adjustment feature allows the end-user the ability to adjust ride height to their preference, something that lowering springs lack. Being that most vehicles are slightly unbalanced from left to right sides, that means you can easily adjust the ride height so that each corner is even from their opposing sides.

STREET ADVANCE Z takes the ride height adjustability of the STREET BASIS Z line and adds 16-way damping adjustment. So, not only do you get a matched spring and damper setting, you now have the ability to tune the dampers to meet your driving conditions. Roads seem a bit rough? Soften up the damping. Glass smooth highways? Crank the damping to a stiffer setting. You get all that and everything in between.  STREET ADVANCE Z is also compatible with our EDFC systems (some STREET ADVANCE Z coilover kits may require extension kits for compatibility), giving you a completely adaptable suspension kit based on your driving conditions/characteristics! That’s a feature that not even all sports luxury cars have, and our setup is at a much more affordable price!!!

Like the FLEX Z line, these new STREET BASIS Z  & STREET ADVANCE Z coilovers have a very appealing starting price! STREET BASIS Z comes in at $400 while STREET ADVANCE Z comes in at $500!!! Those are unheard of starting prices for a TEIN coilover!

And, just like the FLEX Z coilovers, replacement parts will be made readily available! If your STREET BASIS Z or STREET ADVANCE Z dampers start feeling worn, you can purchase replacement dampers! No need to send them into us for a rebuild since these are fully sealed, non-rebuildable dampers! That will save you some money, and most importantly, extended downtime! We’ll help to get your car back on the road as quickly as possible!

Again, the only major difference is that the new “Z” line of dampers are non-rebuildable.

Internally, we continue to use our ADVANCE NEEDLE for increased per-click damping adjustment. This translates into greater damping change for each click of the 16-way adjuster, making it easier to find the perfect damping setting. Our high performance damper oil, the same kind we use in our race dampers (Gr.N, Super Racing, N1) provides excellent anti-foaming and viscosity characteristics under heavy cyclic rate, giving you repeatable damping feel and performance for the life of the damper.

ADVANCE NEEDLE provides wide-range damping force change per click.

Proprietary damper oil exhibits excellent anti-foaming and viscosity characteristics for stable damping force under extended use.

We will still retain our exclusive damper coatings, too. Our shot blasted, zinc plated high strength STKM13C steel damper bodies are treated to our patented 2-layer/1-bake powdercoating procedure. This gives our dampers excellent protection against corrosion in harsh environments, especially in areas with heavy snowfall. Our patented ZT coating is applied to our threaded adjustment tubes (inside and out), and contribute to smooth height adjustment, and outstanding adhesion to the steel threads. This ZT coating will not peel or flake off even after repeated adjustment. This is due to the ZT coatings’ low friction coefficient. Essentially, it acts as a dry lubricant. That makes every external component of the steel bodied damper completely protected from the unforgiving environments we subject them to, and we expect our dampers to perform at their very best year after year after year…

the bare surface of our dampers are treated to a double shot peening adding surface strength and also prepares it for zinc coating.

We’ve also updated our spring seats and seat locks for increased durability under heavy vehicle loads and smooth height adjustment. Instead of using a rubber spring seat, we’ve added a Delrin thrust washer atop the new, wider spring seats.

Coilover springs will continue to be made from cold-wound SAE 9254 Vanadium alloy. After cold winding and setting, we heat treat the springs prior to grinding end coils to proper dimensions. Before powdercoating, we subject every spring to double shot-peening which aids in increased spring life and fatigue strength. Some coilover applications may have application-specific spring windings and shapes, such as our barrel springs or taper springs.

We will also continue to provide our 1-year warranty against manufacturer’s defects. Even at this new starting price, we will stand behind our products!

So now you’ve got the highest available quality and performance at an extremely low price, and backed with a manufacturers warranty. Unfortunately, we still haven’t made it easier for you to decide with TEIN suspension system you want. So we ask you to please give our sales staff a call at 562-861-9161 for assistance in getting you into the proper TEIN suspension kit for your needs!