It’s been a pretty hectic and scary past couple of months, and with the outbreak of Coronavirus COVID-19, it’s brought many businesses in all industries to nearly halt all activity or at least slow them down tremendously. Government officials are imposing moratoriums in all states and, most concerning, nearly all countries.
In Los Angeles County, where TEIN USA, Inc. headquarters is based, many public and private schools are closed, restaurants, bars, and other common places for social gathering, have been either forced to close, or reduce customer interaction to take-out/to-go services only.
We, however, are still operating, doing our best to service our customers as best we can, and we’ll continue to do so until informed otherwise. But, as you can imagine, this outbreak has already taken its toll on TEIN’s manufacturing facilities in China and in Japan. We are starting to see how this affects our imports for our coilovers and springs.
In a way, though, we’re fortunate to have a product that customers want. However, we don’t expect you to all ignore the obvious. This is a time for us to all take inventory at home, and make sure we have the necessary supplies to stay healthy at home, such as food, cleaning/disinfectant supplies, and such. That also includes us TEIN USA staff. While we still have to work, we are exposed to the same dangers as any one of you. Our priority isn’t necessarily to make a suspension sale right now. So, please do what you can to stay safe, even if that means isolating yourself at home.
We hope to see good progress in stopping the spread of the virus in the very near future, and when it does, we’ll be around to service you all once again.
I’m lucky enough to be one of the first in the U.S. to put our new ENDURAPRO shock absorbers to use in the U.S. My 2008 Honda Fit was fitted with the ENDURAPRO PLUS (16-click damping adjustable) shocks and struts, which I eventually added our S.TECH lowering springs, around March 2018. I figured it’s time to visually inspect these shocks and see how they’ve held up.
As previously mentioned, this car is typically my daily commuter for work. I average about 14,000 miles in driving a year. While I technically have just over 21,000 miles on these ENDURAPRO PLUS shocks, the other miles I drive for the year has been on my truck. Still, I think over 21k of miles on our ENDURAPRO PLUS shocks is a pretty good age to finally give them a look-see. Mind you, the average shock absorber lifespan is typically 36,000 miles in the U.S. Not too sure how that average came to be. We see shock absorbers last much longer than that. Quite honestly, I should have inspected these shocks a long time ago (a reminder to all to inspect their cars)!
Prior to giving you a run-down of the inspection, I will say that overall the shocks still feel great! Over time, I’ve readjusted the damping click settings simply to find that “sweet spot” in comfort. After all, installing lowering springs will alter the ride quality. Currently I have the fronts and rears set to 8 clicks from stiff (essentially the middle setting). I had previously had it somewhat softer in front and stiffer in back, as I felt it worked well whenever I had the car fully loaded. I may end up softening the front just a little, once everything is reinstalled.
Speaking of fully loaded, that is probably the most awe inspiring experience that showcases how our shock absorbers perform! It really is! As you probably already know, our ENDURAPRO/ENDURAPRO PLUS line includes internal Hydraulic Bump Stoppers, which helps alleviate that ever-so-fun suspension oscillation whenever the car is at maximum capacity.
Again, since it’s my daily commuter, typically there isn’t much extra weight in the car, other than my kids’ seats and some kids junk in the back seats. With lowering springs that are a bit stiffer than stock, it can feel relatively firm over bumps and gaps in the highway. Overall, our S.TECH springs aren’t terribly stiff.
However, after my bi-weekly trip to Costco, which usually consists of purchasing several cases of bottled water, my kids’ diapers and formula, and a bunch of other necessities you have no choice but to purchase in bulk, the trunk gets heavily loaded, and you can both see and feel that added weight. Then add my sons, when i have to pick them up at their Nana’s house. It’s basically like I’m loaded for a long-distance road trip.
This is where our Hydraulic Bump Stopper really comes in to play. Our Southern California highways are anything but smooth, and there are plenty of large gaps, expansion joints, dips, pavement cracks/potholes, ramp-like bumps over overpasses, etc. It’s a great way to put suspension to work, and at highway speeds, this provides us with a horrific ride, and one that puts our vehicles through pure torture. Did I mention that I also have to listen to “Elmo’s Song” on repeat whenever the kids are in the car???
But seriously, over this type of highway terrain, TEIN’s Hydraulic Bump Stopper really does its part in helping absorb these high-speed impacts, preventing the polyurethane bump stop from doing that work and helping the shock absorbers rebound nice and smoothly. Honestly, it has to be one of the more rewarding parts of my commute. Now I can understand what trophy trucks must feel like over big jumps,,,,,, just at a much smaller scale. Hahahaha!
Anyway, on to the inspection:
One thing I noticed was the front strut mounts were making a bit of noise, especially when steering at slow speed. I initially thought it was the bearing making the noise. But, for all I know it could have been a problem with the struts. This just confirms it was indeed the upper mount. However, as mentioned during the initial installation of these ENDURAPRO Plus shock absorbers, the front mounts probably contributed to a slightly lower ride height than target, due to the mostly rubber mount taking a set after 80,000 miles of use. Now at 101,000 miles, it is time to change these components out to fresh new factory style mounts.
Old mount on the left, new on the right. You can see how the mounts have sagged over time. It was starting to make some noise, most notably at low-speed.
For the rears, the only thing I noticed was a hole being worn into one section of the dust boot. Looks to have made contact with the tire. Not a big deal, and replacement dust boots are readily available.
I also checked gas pressure while the shocks were off the car, and all of them seemed fine. By checking I mean I fully compressed each damper by hand and checked the rebound, as well as tried different damping settings during the same procedure. I will say the damping click adjusters were slightly stiff up front. However, that could be due to not using the included ADD Caps to cover them (this keeps dust out of the system). A simple spray of WD-40 or similar type lubricant will displace any dirt or corrosion in between the click knob and its base. Also, any exposed thread on the piston shafts for the front dampers accumulated some surface rust. A wire brush cleaning and some WD-40 helps clean that up. But since I removed the struts from the original upper mounts, the threads got a decent clean up simply from the removal process.
Front strut out. I needed to remove the bearing, as I thought this also contributed to noise I was hearing at low-speed driving.With the bearing out, I decided to inspect the shock. All components removed help to make a more detailed inspection.
Good thing I inspected the struts! There was some dirt I had to clean up around the dust seal.
While I’ve had the ENDURAPRO shock absorbers off, I checked bushings in the control arms, ball joints, sway bar end links, and tie rod ends just to make sure of their condition, which fortunately they are. I’m sure at some point I’ll change out the front lower arms (bushings by themselves are not readily available). For the rear twist bar, it’s hard to source just the rear bushing, so I’m going to keep searching for a solution.
I did have the tires changed at around the 3,000 mile mark on these shock absorbers. I wanted to try something a bit more sport oriented, but not very expensive. Also, my “tuning philosophy” (if you will) for starting to modify a car is usually in the order of- decent tires, sport (not race) brake pads/shoes, and some decent suspension (as in shock absorbers and possibly springs), especially if there is a damping adjustable option. This before ever considering more power. With ENDURAPRO Plus shocks and S.TECH lowering springs and some Stoptech Sport pads and plain rotors installed, I needed decent tires. So, I contacted the guys at GT Radial to order a set of their Champiro SX2 Summer tires. I’ve followed the 86 Cup group and saw that these tires offer very decent performance and very good wear resistance, and I wanted to try something other than all-season tires that this car has used over the years. I opted for a size slightly smaller in diameter than stock just to see if there was any gain in performance.
A new set of tires go on the Fit, courtesy of GT RadialA big thanks to Gonzo, who invited me over to his Chateau. He’s got a full tire changing station in his garage! His son Enzo also came out to help. Good kid!
I will say that these SX2 tires still provided very good comfort. Being a daily commuter, this car only gets an occasional spirited drive. For me, that comes with the excitement of driving through Angeles Crest, since it’s kind of in my “back yard”. Interestingly enough, I found that these tires at 31psi cold, and a 13-click front shock setting (soft) and 6-click rear shock setting (somewhat stiff) had very good and predictable feel. I could very lightly get the back end to rotate with a touch of left-foot braking, and the feeling was pretty consistent throughout my drive through the hwy. The Fit is a very front-heavy car, so it takes a little coaxing to get the car to turn in, since the car understeers easily. One thing I could appreciate from these tires is the wear resistance. Rated as a 200 treadwear, these tires held up better than some 360 treadwear tires I had on previously (which actually only lasted about 13,000 miles before I changed them out to these SX2’s). Dunno what the deal is with that, but those are my figures.
Mind you, these aren’t all-season tires, so I take it a little easier during rainy days. However, wet weather driving is actually quite nice on this setup. Not that I was expecting to hydroplane on a summer tire on wet pavement, it actually handled heavy rain and puddles very well.
While this is sounding like a tire review, what I’m getting at is that these small changes to this daily driven econobox (TEIN S.TECH Springs, ENDURAPRO Plus Shock Absorbers, and GT Radial SX2 tires) have already made this car more enjoyable for my drive. Does it make me miss having a much more sporty car? Absolutely. But, gotta work with what I got. I think most importantly is the value of all these parts as a whole- Not a lot of money spent (granted, I got the shocks for free for testing on my car) to “upgrade” the car. So, for most of you guys looking to make your car a little bit faster and more fun to drive, this should be something to think about.
By the way, the slightly smaller diameter tires I chose actually helped improve a few things such as MPG (when I really take it easy on driving) and acceleration (most notably in higher gears). I was expecting MPG to be a bit worse. However, it has affected actual speedometer readings a tad, but the factory speedometer reads ~1 MPH lower than actual.
All in all, I’d say I’m more than pleased with the car as it currently sits. Not a ton of money invested in getting some performance out of it. Decent suspension, very good tires, and sportier brake pads up front, and I’m a happy camper!
From all of us at TEIN USA, Inc., we want to wish everyone a Merry Christmas!
We’ve been very fortunate to continue a successful growth in the U.S., even with tariff increases due to the U.S. and China trade squabble. If anything, this only strengthened our sales for items coming from our Yokohama, Japan factory! Still, our TEIN China factory has continued to produce our STREET BASIS Z & STREET ADVANCE Z, as well as our ENDURAPRO & ENDURAPRO PLUS shock absorbers for a global market, and we couldn’t be happier with the demand for our products around the world! At any rate, we’re continuing to pursue manufacturing the most reasonably priced suspension package at the TEIN high-quality levels our customers are all aware of, and we thank each and everyone of you for helping us achieve those standards year after year!!!
Just to let you know, TEIN USA Operations will be closed on Christmas Day (Wednesday, 25th). But, we will be open Christmas Eve (Tuesday, 24th) and after Christmas! So, whether you have questions about new products for your car, overhaul/revalve, or just want to give us some company during those days, please feel free to give us a call!!!
Once again, Merry Christmas, and we hope Santa puts a new set of TEIN coilovers or lowering springs under your Christmas tree this year!!!
While we still sell plenty of our FLEX Z and MONO SPORT coilover kits, and since they fit the bill for most consumer’s needs, we feel and also see the need for more race-oriented suspension setups. To date, we still produce our SUPER RACING coilover line for those needing a setup to match more aggressive chassis and tire setups people use for road racing and the ever-so-popular Time Attack races. However, for some, there is no necessity of 2-way damping adjustability. In fact, for some consumers, having that extra adjustment (separate compression and rebound damping), might be confusing. Again, probably why we still sell plenty of FLEX Z and MONO SPORT coilover. There’s a certain simplicity to these coilovers.
But, in between a MONO SPORT or SUPER RACING coilovers is a bit of a gap. This led to our development and release of the new MONO RACING coilover line.
MONO RACING coilovers take all of the features of the MONO SPORT line- monotube construction (with our proprietary “Strong Upright Tube” setup for strut suspensions), threaded shock body (for separate spring preload and ride height adjustments, and use of our Micro Speed Valve (M.S.V.) for improved low-speed damping control. With that, we add some features of the Super Racing line, mainly items for strut type applications, such as camber/caster adjustable front upper mounts and extra camber adjustment at the lower bracket (camber washer). Along with those features, we valve the MONO RACING dampers far more aggressive and include stiffer springs, making the package a much more race oriented feel. Damping adjustment is rebound only (16-click, like our typical coilovers), and is of course compatible with our EDFC systems. Like all TEIN coilovers, we still treat the MONO RACING coilovers to our proprietary ZT and powdercoating for long-lasting durability. MONO RACING coilovers are also serviceable (rebuild and valving) and customizable.
Camber Washer for Strut Type SuspensioTEIN developed Micro Speed Valve
Again, the setup is aimed towards consumers who done vehicle modifications that are complimentary to a track setup. Typically a very good summer tire or even R-compound will work well with this suspension package, but also other additions like small aero upgrades can take good advantage of the more aggressive damper and spring setup.
Most importantly, we wanted to bring this user-friendly race coilover kit at a reasonable price point, starting at $1800 and going up to $2220, all depending on the vehicle application (strut type or independent spring/shock type suspensions are more expensive).
Now available for the following applications:
Honda Civic Type R (FK8) *includes Error Canceller Units
Toyota 86 (Scion FRS)/Subaru BRZ
Mazda Miata (NA6C/NA8C/NB8C/NDERC)
Mitsubishi Lancer Evolutions VII/VIII/IX (CT9A) and X (CZ4A)
This past week we had a 2018 Ford Mustang GT (S550 chassis) come in for testing. This particular one has the Performance Package. This package looks to include “heavy-duty” front springs and a thicker rear sway bar. Our guess is that the factory shock absorbers and rear springs have also changed from earlier S550’s Performance Package, with the shocks being a tad big more aggressive in valving, and so far we can say that we feel these differences.
ENDURAPRO PLUS (damping adjustable) for S550 Mustang shown
You can say it is a much sportier ride now. However, for some of us older fellows at TEIN USA, it was a bit too uncomfortable, whether it was street or highway driving. Personally I don’t really like how overly sensitive the steering was. Felt like I could accidentally loose control should my reflexes overreact. It just felt very twitchy and unstable.
Anyway, we wanted to test our upcoming STREET BASIS Z coilovers for this vehicle. BUT, it was also an opportunity to test our ENDURAPRO shock absorbers on this car, and it was definitely an improvement from our point of view!
As mentioned, the new GT Performance Package offers factory upgraded suspension. It was a far cry from how the first S550 GT we tested felt (when we were developing our FLEX Z coilover kit).
With the ENDURAPRO shock absorbers, ride quality was much more bearable for a daily drive. Much of the harshness we feel from the factory suspension is gone (however we can feel a difference with the stiffer front spring). Turn-in hasn’t changed dramatically, which we can possibly attribute to both the front springs and the larger rear sway bar.
Front ENDURAPRO strut compared to OEM strut.Rear ENDURAPRO shock absorber compared to OEM shock.
How this compares to earlier S550 GT suspension is quite different, however. Again, with the current Performance Package suspension being more aggressive, the ENDURAPRO shock absorbers now make the car feel more compliant (not soft, not boaty, just better comfort). On an earlier S550 much of the sportiness is still there. But in both cases, the included Hydraulic Bump Stopper of our ENDURAPRO shock absorbers adds a much smoother ride quality under heavy loading. Over very large bumps, like expansion joints or overpasses on a freeway, this Hydraulic Bump Stopper really helps suppress upward jolts and smooths out the rebound. Given that the Mustang has relatively short suspension stroke, this pays huge dividends to providing comfort!
ENDURAPRO shock absorbers for the S550 Mustang are in stock and ready to ship!
Lately one of our greatest developments to hit the mainstream in TEIN suspension kits is our Hydraulic Bump Stopper (H.B.S.) system.
This technology isn’t anything new. However, the current derivative is a much more affordable design, and has now made its way into coilovers like our FLEX A and FLEX AVS kits, and now our ENDURAPRO & ENDURAPRO PLUS shock absorber lines.
Why are we creating so much buzz about this system? Mainly because a comparable Hydraulic Bump Stop system isn’t typically found in passenger vehicles, outside of trucks where you’d have to opt for something like an externally mounted bump kit.
Even our current Hydraulic Bump Stopper system used in our FLEX A, FLEX AVS, & EnduraPro/EnduraPro Plus shock absorbers differs from systems used in rally suspension, which are typically much more expensive units and require rebuild. Our current system is more affordable to make and doesn’t require servicing (FLEX A and FLEX AVS dampers are rebuildable, but the H.B.S. system doesn’t need to be rebuilt, per se).
Still, all this hype we’re making about a Hydraulic Bump Stopper doesn’t mean much if you don’t know what it does. So, picture this: You’re in a fully loaded vehicle (max occupancy) and have the trunk fully loaded. Already you can picture the suspension starting to sag. Then, while driving, you hit a big speed bump. On any normal suspension, chances are you’re hitting the bump stops, which will do a great job of preventing the shocks from bottoming out. However, the consequence of hitting the bump stop is a harsh impact and resulting bouncy or wallowing feeling.
Now, a Hydraulic Bump Stopper eliminates this bouncy/wallowing feeling. It does so by creating more damping force towards the end of the damper stroke.
Typically our dampers are valved to offer a digressive feel, meaning that as piston speed (of the shock absorber) increases, it will only increase damping force to a certain extent, then it actually does not increase in force if piston speed is even higher. That is typically fine, but when this high piston speed is towards the end of the shock’s stroke length, it will have that harsh feeling (remember that bump stop?) we’re mentioning about.
Honestly, a damper with progressive or linear rate damping can still hit a bump stop and cause that harsh feeling.
But why does creating more damping force with the Hydraulic Bump Stopper help? Essentially it’s slowing down the piston of the damper. It gradually builds up this damping force so that the end result is a smoother absorption of force, while letting the damper rebound normally without oscillation.
When you see Stadium Trucks or Baja Trucks take on a massive jump, what you see on its landing is actually quite impressive. The suspension fully compresses, but as the suspension extends again, it’s nice and smooth. No crazy up and down oscillation. That’s what our H.B.S. system does, but for a smaller scale (shorter stroke length than Stadium or Baja Trucks, obviously).
Or, another example: Using lowering springs on OEM or replacement shock absorbers. While this setup is common place, and most work relatively well, some lowering springs might be too low of a ride height or too stiff a spring rate for the OEM valved shocks. A premium replacement like our EnduraPro line is a better match. Valved to offer a beneficial increase in performance, the added Hydraulic Bump Stopper is a nice addition because of the lowered ride height with lowering springs.
While our EnduraPro/EnduraPro Plus shock absorber line is a match in terms of overall length (compared to OEM), they offer larger internal capacity and more damping oil, and improved damping characteristics. So from a performance standpoint, these are a great upgrade for your lowering spring. Again, these include our H.B.S. system, and when lowering a car using OEM/standard replacement shocks, reducing that stroke length can mean exacerbated issues with ride quality and more chances of hitting that dreaded stock bump stop. You’d end up with similar ride issues in a fully loaded vehicle. Now we can resolve this potential issue by using the increased damping force the H.B.S. system creates further down the shock absorber’s stroke length!
It really is an ingenious system, and one that we’re glad to bring into mass-production. The fact that we can adapt this product into our replacement shock absorber line means that this feature is available to all consumers, whether their budget allows for just our premium shock absorber replacements only, or for those looking for greater handling performance (like our FLEX A or FLEX AVS coilover kit). We’re hoping to add this to many more of our products in the near future!
This isn’t the first time we bring this up to you, our customer. Actually, it is a very common problem for people setting up their suspension. Once our suspension is installed, they lower the car back to the ground and notice uneven ride height from left to right side.
We’ve found this to be an issue with a few vehicles, mainly vehicles with a multi-link or “double-wishbone” suspension. And mainly this is because these types of suspensions have more rubber bushings in their suspension arms.
Once you disassemble some suspension arms in order to access the shock absorber assembly, like in a Mazda RX-8 for example, you’ll have to reassemble the arms through their respective nuts/bolts. That’s not uncommon, and this probably sounds relatively straightforward to you.
However, what we fail to account for is the fact that we typically do this when the vehicle is in the air, on jackstands or on a lift, leaving the suspension drooping down (fully extended).
Why is this important to note? Well, once you start to loosen these nuts/bolts at suspension arm joints, you’re essentially removing any tension on the bushings associated with each arm. When that same bushing needs to be reinstalled (by way of connecting the arms with the nuts/bolts you removed), you end up tightening all these bushings while the suspension is drooping down (fully extended). Those bushings that were just recently relieved of the tension they were once under are now at zero preload. Now, when you put the suspension back on and the vehicle back on the ground, these zero preloaded bushings start to twist. The only issue is the twist isn’t necessarily going to be even from any specific corner. This leads to the uneven ride height you might be experiencing.
How can we prevent this uneven ride height? Well, this requires loading up the suspension PRIOR to tightening any nuts/bolts to these suspension arms. Obviously this isn’t easy to do since the best way to load the suspension is to put the car back on the ground. There are 4-post lifts that also serve as ramps. This gives you undercar access to these nuts/bolts that you can tighten. Those with vehicle ramps tall enough to let you creep under the car to tighten any nuts/bolts is also good. However, this is the BEST way to avoid any bushing preload issue. We must note, though, that this doesn’t cure uneven ride height completely, since all vehicles do have a weight bias from one side to the other, and of course from front to back.
Does this mean that rubber bushings are a terrible design? No, not at all. In fact pretty much all production vehicles use rubber bushings. They’re effective in terms of performance and cost, which most OEM companies are very sensitive about. Quite honestly, they’re probably more durable that some aftermarket floating bushing designs since they really don’t require maintenance (periodic greasing), with the exception of sway bar bushings. Once they’re bad, you have to either replace the bushing or replace the arm that the bushing is pressed into (the latter being the most commonly offered for ease of installation).
Again, the difference between rubber bushings compared to typical aftermarket floating bushings is that the rubber bushings have any steel components, such as the crush tube and shell, bonded together through the rubber filling. Floating bushings, typically polyurethane in the aftermarket, simply have the bushing free moving between the shell and crush tube. This is great for having free-pivoting arms, allowing the damper and spring to do their job more effectively, but also requires quite a bit of maintenance to make sure they’re greased properly (you don’t want polyurethane to dry up). Not a big deal if you really enjoy wrenching on your car, and in some cases, aftermarket bushing manufacturers have included zerk fittings to either the steel tube or crush tube to ease the greasing process! Not all bushings have easy access for a zerk fitting to be placed, however, which has led to the development of bolts being gun drilled and cross-drilled and a zerk fitting threaded to the end.
Rubber bushings, again bonded to any steel shell or tube, don’t allow this free pivoting. Instead, the bushing relies on strain, or stretching of the rubber, meaning you have a limited range of motion either up or down, or even side to side. For most cars, this isn’t a problem.
Because most rubber bushings are “maintenance-free”, over long periods of time, they will dry rot and the rubber material will break away. This creates excessive movement of the suspension arms (moving in directions not intended), and can cause poor and unsafe driveability.
Every year a new car release puts us consumers in a tough spot- choosing between a “want” and a “need”. Actually, that’s pretty much the market that TEIN is in. We have a performance product that either a customer simply just wants, or in fact really needs, all depending on what they’re using it for. And for us, just like these new car releases, we have to determine which of our products the customer is going to want, especially for something like the much anticipated new Toyota Supra.
Even on a spec sheet, a stock A90 Supra is a very good package. Of course, as always, the OEM leaves a bit to be desired in many aspects. However, we can see a change in demographic in what they “want” and “need”. Even before the A90 made its way to the consumer, we received inquiries on this platform, mostly with potential owners wanting coilovers. In fact, we got our head start working with Toyota Motorsports as they prepared a couple of A90’s for pace cars to be used at Toyota sponsored events, such as NASCAR races. It was a great opportunity for our in-house engineer to get all the measurements he needs and make a suspension that works well for a pace car, no different than what we’ve done for the Camry pace cars that Toyota Motorsports has worked with us on suspension over the past few years.
Toyota Pace Car
Again, on OEM specs alone, the new A90 Supra is very well equipped. Even though we knew that a “pace car” suspension will never be made as an out-of-the-box setup for our end-users, we had to really think of what, of our products, is the best fit.
A90 Supras have factory electronically controlled suspension. It’s sharing basically all the underpinnings of BMW’s Z4 platform, and BMW technology is found throughout the Supra. So, we know that some consumers are going to want to retain that feature. So first on the list is lowering springs, our S.TECH line specifically.
Next, we knew that coilovers were inevitable. So development on that naturally came next. We’re for sure making a street compliant kit, most likely based around our STREET ADVANCE Z, FLEX Z or FLEX A line. However, the issue is compatibility with the factory electronic solenoids. Much like the FK8 Civic Type R, we’re having to develop our Canceller Units to avoid any issues unplugging these said electronics. This means that the customer can opt for one of our EDFC kits instead of the factory electronics. Yes, that’s an added cost, but our EDFC systems (specifically ACTIVE and ACTIVE PRO) are very advanced and a worthwhile upgrade. Still, we may consider something like our FLEX AVS coilovers which is aimed at Toyotas and Lexus’s using Adaptive Variable Suspension. BUT, this car uses BMW based suspension, and not Toyota’s AVS. So, that will take a bit more time to develop.
On top of making a FLEX type of coilover, we will plan for a more race oriented type setup, most likely around our new MONO RACING coilovers.
Preliminary testing has been completed on production A90’s (the Supra Pace Cars were technically pre-production vehicles, to my understanding). But we’ll still be working on development once other coilover prototypes arrive. So, give us a little time to get these products out!
The recent trade wars between the United States and China have put a little damper (pun intended) in our sales recently. That’s because products manufactured in our own TEIN China factory are being hit with a 27.5% tariff.
What does that mean to the consumer? Actually, even to us here at TEIN USA, Inc., this is a big deal. When we initially offered our STREET BASIS Z & STREET ADVANCE Z coilover line, both manufactured by TEIN China, starting price was $400 and $500 respectively. That was quite an achievement for us.
Earlier this year, we had to implement a small price increase for these same products, due to some previously increased tariffs on Chinese manufactured goods. Now, as of July 1st, our STREET BASIS Z & STREET ADVANCE Z have a starting price of $620 and $700 respectively. However, this also affects our new ENDURAPRO & ENDURAPRO PLUS shock absorber line, which we’ve recently started launching many more vehicle applications. And, it’s also affected our STREET ADVANCE Z4.
Again, that is a huge jump in price. While still reasonable when compared to other aftermarket suspension offerings, this still leaves many customers with some deliberating when choosing their next suspension offering. Again, at that price, you can probably start considering our FLEX Z coilover kit as an option, so long as we have a FLEX Z offering for the customer’s vehicle.
Anticipating this latest tariff increase hurting our sales, we reached out to our authorized dealers and wholesalers in an effort to get them to stock up on coilover kits prior to this increase, which many of them were quick to respond to. So, in a way, we don’t expect our recent price increase to affect customers right away.
At any rate, we truly believe we have some of the best customers around, and we greatly appreciate the support you all have given us over the nearly two decades we’ve spent here on U.S. soil. We hope the U.S. and China can work quickly to reduce these tariffs and let us get back to offering truly reasonable prices to you!
We offer a few coilover kits that use a left-hand threaded body or adjustment tube. In other words, the threading for some of our spring seats and seat locks have a reverse thread. That means that what you usually know about tightening and loosening our spring seats and seat locks is now the opposite for some of these left-hand threaded components.
Again, it’s only a few applications. So to make it easier for you, below are the vehicle applications and coilover kits that have left-hand threaded components for the front left coilover.
2001-2005 Honda Civic:
STREET BASIS Z (GSA22-8USS2)
STREET ADVANCE Z (GSA22-9USS2)
FLEX Z (VSA22-CUSS1)
2003-2005 Honda Civic Si:
STREET BASIS Z (GSA22-8USS2)
STREET ADVANCE Z (GSA22-9USS2)
FLEX Z (VSA22-CUSS1)
2003-2011 Honda Element:
STREET BASIS Z (GSA76-8USS2)
2002-2006 Acura RSX:
STREET BASIS Z (GSA28-8USS2)
STREET ADVANCE Z (GSA28-9USS2)
FLEX Z (VSA02-C1SS1)
We’ve also noted this left-hand thread caution on our website search by vehicle:
As well as our coilover boxes for these specific kits:
AND LASTLY, we also note this in our instruction manual included with every kit:
Hopefully this is helpful for some of you owners of the vehicles listed above. Again, we’re not counting on you to read our blog first, which is why we note this on the boxes and in our manuals, as well as on our product search page of our website.
