As low as 0% APR - Buy Now, Pay Later!
On orders over $200
100% Money Back on Select Parts
Product images
Product Media
Tein Flex Z Coilovers (Part Number: )
Tein Flex Z Coilovers (Part Number: )
Tein Flex Z Coilovers (Part Number: )
Tein Flex Z Coilovers (Part Number: )
Tein Flex Z Coilovers (Part Number: )
Tein Flex Z Coilovers (Part Number: )
Tein Flex Z Coilovers (Part Number: )
Community Media
Tein Flex Z Coilovers (Part Number: )
Tein Flex Z Coilovers (Part Number: )
Tein Flex Z Coilovers (Part Number: )
Tein Flex Z Coilovers (Part Number: )
Tein Flex Z Coilovers (Part Number: )
Tein Flex Z Coilovers
Subaru STI 2008-2014
Read 5 Reviews | 7 Q&As
Part # VSS84-CUSS1

Ships in 24 hrs

Features & Product Details

The best thing you can do for your STI to improve handling is replacing the stock suspension with high performance coilovers. The Tein Flex Z Coilovers will give you the ultimate control over your car with independent ride height adjustment you can dial in the ride height you crave with ease. The Flex Z’s feature 16 way damping adjustment which allows you to dial in the suspension for any condition, whether you are going for a canyon cruise, attacking corners at the track or heading to work, you can fine tune the suspension to give you maximum performance and comfort.

Tein has been a suspension specialist since 1985 and you can find their suspension on some of the quickest cars in motorsport. With their knowledge and quality manufacturing, you know you are getting some of the best suspension found on the market.


Brand: Tein
Adjustable: Yes
Camber Adjustable: Front Only
Caster Adjustable: No
Dampening Adjust Type: 16 Way
Damper Type: Twin Tube
Drop Height Front: -0.1-3.8in
Drop Height Front Metric: -2-96mm
Drop Height Rear: 0.8-1.6in
Drop Height Rear Metric: 20-40mm
Height Adjustable: Yes
Independent Height Adjustable: Yes
Spring Rate Front: 504lbs/in
Spring Rate Front Metric: 9Kg/mm
Spring Rate Rear: 392lbs/in
Spring Rate Rear Metric: 7Kg/mm
Top Hats Included: Yes
Mfgr. Warranty: 1 Year
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.



5 Reviews
3.8 out of 5 Stars
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Customer Photos and Videos
Tein Flex Z Coilovers ( Part Number: VSS84-CUSS1)
Tein Flex Z Coilovers ( Part Number: VSS84-CUSS1)
Tein Flex Z Coilovers ( Part Number: VSS84-CUSS1)
Tein Flex Z Coilovers ( Part Number: VSS84-CUSS1)
Tein Flex Z Coilovers ( Part Number: VSS84-CUSS1)
Total Function and Form here!!! 10 days ago
I am going on 2 yrs of driving on Houston streets/Medical Center since these are on my daily driver and the ride quality is still holding strong! Once you find the sweet spot with rebound and ride height (everybody has their own prefs) it holds it. My other WRX wagon has Stance coilovers on them and they hold fine but no where near as plush of a ride (Im on the next to softest setting) as these TEINs! This mod/upgrade was TOTALLY worth every peso!! :-D p.s. be sure you buy all NEW Subaru nuts and bolts for the install (addtl $80 ~) you should not re-torque the ones you already have! Also, PB Blaster is your BFF
Was this review helpful?
Trash 2 months ago
The coilovers were installed by mysef and aligned by a reputable performance shop everything was good no noises and great ride feel. 2500 miles later the rears are screaming on every bump and weight shift. I thought the price was a good deal and I wanted to give them a shot but will never install Tein products on any of my vehicles again. Save your money and go with a better company
Was this review helpful?
Tein Flex Z Coilovers  4 months ago
For the price thy're definitely worth it, the quality of the coils were great and the ride is pretty good as well. Now if you're looking for something as comfortable as clouds then coil overs are not the route to go. I tried them on the canyons and I still feel I need better suspension parts but definitely an improvement less body roll.
Was this review helpful?
Good quality product.  1 year ago
Decided to go with the Flex Z's because they ride very similar to OEM. I don't track or rally X my car. So I wasn't looking for something too aggressive, after doing my research and talking to the RSD staff, I went with these bad boys. The car rides so much better than OEM's and the handling is amazing. I have the recommended settings that Tein instructions gave me, for ride stiffness. the car ride is very smooth. Overall, I'm very happy with this product, and I highly recommend this. Thanks to RSD for the help, and the super fast shipping.
Was this review helpful?
Tein Flex Z Coilovers 2 years ago
Purchased these for two reasons, stance and performance. I installed these with my dad in his garage. It's a fairly straightforward process, the fitment is good. For the rears, you will definitely need a spring compressor in order to remove the old struts. Also may need a grinder to remove the remove the rear bolts as they broke two of our ratchet extensions before stripping the thing. Took a very long time to figure out the part number for the rear camber bolt. Its 901000357 from the dealership. If you adjust the damper to the recommendation by Tein, it feels very similar to stock, I actually prefer the ride. I decided to drop it until the tire was inside the wheel well and so far have had zero scrapping. Corners are a breeze, I can feel the lack of body roll. Overall great product, highly recommend
Was this review helpful?


  • Q: Tein Flex Z coilovers  Headhunter5 months ago

    Do these come pre assembled? As well do they come with camber plates for the fronts?
  • Q: Ride height   Sinadcs10 months ago

    Will i be able to keep OEM ride height? Or will these start off lower then OEM ride height? Thanks.
    • 1 of 1 people found the following answer helpful

      A:  There will be a minimum drop of around .1 inches in the front and .8 inches in the rear at the highest setting.

      Evan M. @ RallySport Direct 10 months ago  
      Was this answer helpful?
  • Q: Ride height  13stisedan12 months ago

    Ok kinda like the racecomp yellows with .4" drop all around these can also be adjusted for that or stock height?
    • 0 of 0 people found the following answer helpful

      A:  You will be able to adjust it anywhere between -2-96mm in the front and 20-40mm in the rear.

      Luis L. @ RallySport Direct 12 months ago  
      Was this answer helpful?
  • Q: Height Adjustment  wilej42 years ago

    How much will these lower my 2012 STI?
  • Q: 2006 Subaru WRX wagon   Jackie.C2 years ago

    is it suitable for 2006 Subaru WRX wagon