Lowering Springs on Stock (OEM) Shock Absorbers

Quite often we’re asked about our lowering springs and if it’s okay to use with factory shock absorbers, or OEM, or even OEM replacement shock absorbers.

S.TECH Lowering Springs installed on 2017 Honda Civic Si factory (OEM) struts

The easiest answer is yes, especially if they’re actual OEM factory shock absorbers. We can say yes as well for aftermarket replacement shock absorbers, but there is somewhat of a caveat. The issue is with the spring perch on shock absorbers or struts that have them. For our ENDURAPRO & ENDURAPRO PLUS premium replacement shock absorbers, we use 3D modeling of actual OEM shock absorbers to make our spring perches, then just modify the design so that it fits over our larger bodied shock absorbers. However, there are some instances where we make modifications for increased strength where we feel it may be necessary. This 3D modeling allows us to make very exacting designs so that it will work with OEM coil springs. And with that, we make sure that our S.TECH and HIGH TECH lowering springs have very similar designs for top and bottom coils to match the OEM coil spring.

Why we say there’s somewhat of a caveat with using our lowering springs on other aftermarket shock absorbers is because we’re not too sure how they model their spring perches. Some may use 3D modeling or a mold to create a negative simliar OEM type spring perch. However, we have seen some differences between some aftermarket replacement shocks and the OEM shocks they’re supposedly modeled after.

S.TECH Lowering Springs installed on 2019 Mazda Miata factory (OEM) shock absorbers.

Besides the design of the spring perch (if applicable), our lowering springs are not intended to be very aggressive in terms of spring rate. This is intentional, as we expect that many customers are planning on installing our lowering springs onto OEM shock absorbers. With that, we have to keep in mind the OEM shocks damper valving and whether or not it can handle a specific spring design.

Another unknown variable with aftermarket replacement shock absorbers is how they’re valved in comparison to their OEM counterpart. Referring back to our ENDURAPRO & ENDURAPRO PLUS shock absorber line, we decided to “optimize” damper valving. Now, this optimization may vary by vehicle model. But it most cases we’re actually increasing damping force (slightly stiffer). Again, there’s a bit of a variable, because we may increase/decrease compression or we may increase/decrease rebound damping force, or a combination of both. There’s no set method of how we decide to valve. In some instances we may actually decrease damping force, especially compression, if we feel the ride quality will benefit from that change. But for other aftermarket replacement shock absorbers, we cannot say the same thing. In fact, when we’ve tested some aftermarket replacement shocks to their OEM counterpart, we’ve wondered why some of these aftermarket shocks are quite a bit softer (we’ve yet to see the opposite- stiffer than OEM). This can pose some interesting results in ride quality when comparing certain aftermarket replacement shock absorbers with our lowering springs, regardless of them not being very aggressive.

We’re not necessarily trying to pitch our ENDURAPRO or ENDURAPRO PLUS shock absorbers (how can we resist, though?!). But just know that ideally an OEM shock absorber will suit you best since that is what we designed our lowering springs to work with.

Tesla Model 3 Suspension Arriving Soon!

So we’re a bit late to the party. But better late than never, I suppose. We’ve probably said this many times before.

As Electric Vehicles continue to grow in popularity, and with many nations looking to reduce carbon emissions or become carbon-neutral, it was only a matter of time for the Electric Vehicle market to take off. And it really has taken off.

That’s a great opportunity for aftermarket manufacturers such as TEIN. People may need to rely on their Electric Vehicle strictly for commuting. However, that doesn’t mean they cannot enjoy their car for what it offers at face value. As always, where there’s a vehicle, the performance market is not far behind, and everyone wants that extra bit of performance, whether it be in power or handling, or just to simply have something different or unique.

As many of you have seen by now, the modern Electric Vehicle, namely the Teslas, are quite quick in acceleration. The manufacturer has done pretty well in setting their cars up. But let’s be honest, they’re catering to a global market. You can’t appease each and every person with a “run-of-the-mill” Tesla, regardless of which model Tesla it is.

So, we’re coming out with some performance suspension kits, starting with the Model 3, and soon the Model Y.

For the Model 3, both rear-wheel drive and all-wheel drive models, we’re making our S.TECH lowering springs, ENDURAPRO and ENDURAPRO PLUS shock absorbers, as well as our FLEX Z coilover kits.

The S.TECH lowering springs will provide a nice lowered ride height without being too aggressive. These will pair well with OEM shocks and struts, but for sure our ENDURAPRO or ENDURAPRO PLUS shocks will be a better pairing.

S.TECH Lowering Springs for Tesla Model 3 RWD (Standard Plus Model)

Part number: SKGP2-AUB00

Ride height drop: Ft- -1.6″; Rr- -1.4″

MSRP: $385

*Sold as a set of 4 springs
S.TECH Lowering Springs for Tesla Model 3 AWD (Dual Motor; incl. Performance Model).

Part number: SKGP4-AUB00

Ride height drop: Ft- -1.2″; Rr- -1.4″

MSRP: $385

*Sold as a set of 4 springs

ENDURAPRO and ENDURAPRO PLUS (16-click damping adjustable) shocks are true performance replacement shocks. Damper tuning is optimized to reduce body roll and provide better response to fast inputs. But beyond the tuning, the internal Hydraulic Bump Stopper (HBS) in each shock absorber provide increased comfort and safety by reducing a typical shock absorber’s tendency under full compression (bottoming out) to oscillate. This feature also increases vehicle stability in emergency maneuvers, especially in vehicles with added weight. Also, although designed to be a direct OE fitment, we incorporate a lot of features typical of our coilover kits- larger diameter damper bodies (increased damper oil capacity, larger diameter piston rods, and use of ultra high-strength steel in its construction.

ENDURAPRO Shock Absorbers for Tesla Model 3 RWD

Part number:
ENDURAPRO-
FL- VSGP2-A1MS2-L
FR-VSPG2-A1MS2-R
Rear- VSGP3-A1MS2

ENDURAPRO PLUS-
FL- VSPG2-B1MS2-L
FR- VSGP2-B1MS2-R
Rear- VSGP3-B1MS2

MSRP:
ENDURAPRO-
VSGP2-A1MS2-L – $145
VSPG2-A1MS2-R – $145
VSGP3-A1MS2 – $120

ENDURAPRO PLUS-
VSPG2-B1MS2-L – $160
VSGP2-B1MS2-R – $160
VSGP3-B1MS2 – $135

*sold as individual units

**Model 3 AWD (Dual Motor) shock absorbers coming soon!

Our FLEX Z coilovers, on the other hand, are for consumers who need much more than what our lowering springs and performance shocks can offer. FLEX Z coilovers provided full-length adjustability (separate spring preload and ride height adjustment), 16-way damping adjustment, upper mounts for front and rear dampers, high-rate springs, and valved to provide greater handling performance without compromising ride feel. For sure, much more aggressive for street, but not at the ride quality penalty typically associated with aftermarket coilover kits. Lastly, our FLEX Z coilovers are compatible with our optional Electronic Damping Force Controllers (EDFC)- ACTIVE and ACTIVE PRO, giving you the added benefit of damping adjustment from the driver’s seat. No need to have to manually set your damping by hand, and you can also save up to 10 different presets. However in Active mode, you can have damping that changes based on driving speeds or g-force load. This EDFC setup makes the FLEX Z a true adaptive suspension setup.

FLEX Z Coilover Kit for Tesla Model 3 RWD

Part number: VSGP2-C1AS3

Spring Rates: Ft- 9kg/mm (504lbs/in); Rr- 10kg/mm (560lbs/in)

MSRP: $1,200

*Model 3 AWD (Dual Motor) coilover kit coming soon!

So again, we’re late to the party. We tend to take our time on product development to make sure we get it right, and to make sure we have products that fill the needs of our customers. If you need help deciding on what suspension setup suits you the best, please give us a call at 562-861-9161, or email us at tus_sales@tein.com, and we’d be happy to assist you in getting the suspension you need!

New Products and Developments

With this COVID-19 pandemic throwing us all a helluva curveball, we find ourselves in a very fortunate position to continue our pursuit in bringing some of the best products we can for a wide variety of vehicle applications! We’re continuing to grow, and we couldn’t be happier!

As mentioned, the pandemic wasn’t what we were expecting. In fact, it was quite the opposite of what we were expecting- low to no business, extended lock downs, as well as possibly having to temporarily shut down our operations if things really got worse for all of us.

But, being an automotive parts manufacturer and distributor kept us fully operational ever since we had our lock downs. We have just been very fortunate that COVID-19 has not affected our staff directly. However, the same cannot be said for our parent company and our two factories. Our manufacturing facility in China had to shut down relatively early on in the pandemic. Japan is facing new lock downs due to the spread of the Delta variant. We’re only hoping that, with everyone doing their part, we won’t be faced with harsher lock downs and restrictions.

With that, we’re still facing some struggles. The supply chain has been greatly affected in all aspects and in all industries, and we’re just now catching up on a lot of backordered items for our customers. Freight costs have soared tremendously, not to mention extended transit times or delays for shipments. But yet, we still are trying our best to continue with product development while still being able to service our customers.

So, while we’re still technically trying to catch up, we’ve worked hard to come out with new vehicle applications and broadening our ENDURAPRO & ENDURAPRO PLUS line to reach the European vehicle market, and to-date we’re proud to see this line flourishing. But of course, our coilover lines, our bread and butter if you will, continues to grow as well, with new vehicle applications being added on nearly a monthly basis.

ENDURAPRO Shock Absorbers for BMW X3 and X4 now in stock.
ENDURAPRO Shock Absorbers for Toyota RAV-4 and Lexus NX200t now available.
ENDURAPRO Shock Absorbers for Tesla Model 3 AWD now available (different part numbers RWD Model 3’s also available)

S.TECH Lowering Springs for Tesla Model 3 RWD and AWD available (AWD springs shown.
MONO RACING Coilovers for Nissan GT-R (R35) arriving soon.

Unfortunately posting all the new vehicle and product applications we now have would make this post long-winded and quite boring. So we ask that you please check out our website and search around for what’s new from us!

Also, if it’s more convenient for you, you’re also free to email us at tus_sales@tein.com, or give us a call at 562-861-9161, and we would be glad to assist you in finding products for your vehicle.


EnduraPro/EnduraPro Plus Shock Absorbers for S197 Ford Mustangs Now Available!

More and more applications of our EnduraPro line of premium replacement shock absorbers will be introduced this year! And with that said, we’re also working on applications for American vehicles!

The S197 Mustang is a platform we’re already familiar with, previously launching our Type FLEX coilover system a few years back. However, this new EnduraPro/EnduraPro Plus line isn’t necessarily aimed towards the same kind of customer as with our coilover line.

Pairing well with one of our lowering spring options like our S.TECH line, the EnduraPro/EnduraPro Plus shock absorbers are actually a great improvement when paired with the factory supplied coil springs. We’ve optimized valving of the shocks to add better handling performance without subtracting from the comfortable suspension most OEM suspensions were designed for. Add to that our Hydraulic Bump Stopper (H.B.S.) and you have a very versatile suspension setup whether the road conditions are super smooth or incredibly bumpy, or if the vehicle is fully loaded with passengers or luggage (or groceries).

We tested our EnduraPro Plus (16-level damping adjustable) shock absorbers on a co-workers V6 Mustang. With around 125,000 miles on the odometer, the original shock absorbers were ready for refreshing. Quite honestly, the EnduraPro Plus shocks were a drastic improvement in ride feel and comfort. When set to the softest setting (16-click) front and rear, we were able to maintain a very comfy ride on the street, but left a bit to be desired at highway speeds. At stiff settings (0-click) front and rear, everything changed in the handling characteristics. The ride was definitely firmer, but steering felt incredibly crisp, even with the wheel/tire package (fairly tall sidewalls) this Mustang has. Even at a middle setting (8-click) front and rear, the ride was still very sporty (a bit less firm). I personally found that 8-click front and 13-click rear was a great balance for both street and highway.

While we didn’t get to test these with S.TECH lowering springs (our co-worker doesn’t want to lower his Mustang), I feel that the EnduraPro Plus shocks at a slightly stiffer damping setting would pair up very well.

Anyway, these shock absorbers are now available! Compatible for both V6 and V8 models.