Tein S. Tech Spring Kit  ( Part Number:TEI SKS66-AUB00)

Tein S. Tech Spring Kit

Manufacturer Part # SKS66-AUB00


MSRP: $335.00

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Lowering Springs Kit 05-07 STi ( Part Number:RSD 05-07STILWR)
Lowering Springs Kit 05-07 STi
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TEIN S.Tech Springs are an excellent step towards suspension tuning. They give your car a more aggressive appearance and increased road holding capability. Designed to be used with OEM or OEM replacement shocks. Each application is road tested in North America for the proper balance between performance and comfort. Comes with a 1 year limited warranty, spring length is guaranteed not to sag more than 5mm, and be clear of any manufacturer defects.

Chrome Vanadium SAE9254V Construction

Progressive Spring Rate Design
Green Powder Coat Finish
Developed to be used in conjunction with OEM or OEM replacement dampers
1-year Manufacturers Defect and Sag Warranty(Covers over 5mm sag, breakage, deformity, and noise. Does not cover powder coat finish and rusting.)
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Brand: Tein
Drop Height Front: 1.7in
Drop Height Front Metric: 44mm
Drop Height Rear: 1.2in
Drop Height Rear Metric: 31.5mm
Includes Bump Stops: No
Spring Rate Front: 252lbs/in
Spring Rate Front Metric: 4.5Kg/mm
Spring Rate Rear: 219lbs/in
Spring Rate Rear Metric: 3.9Kg/mm

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.


Verified Purchase

Tein s tech spring kis
Subaru forester xt 9 months ago
Subaru forester xt 06

Verified Purchase

Excellent Product
Scoobadoobadoo05 3 years ago
I read a lot of bad reviews online about these but I personally love them, I don't mind a slight bumpy ride it gives it a more sporty feel in my opinion. I would deff buy again. Cant beat them for the money.
Verified Purchase

Tein S. Tech spring
Rob Mac 5 years ago
The agressive look I was going for while I save up for coilovers. Rides and handles great.

Tein S. Tech Spring Kit
subisti06 6 years ago
Definitely made a difference. Ride looks good and handles great.

  • Q: Bump Rubber  jestrasmil05sti 2 years ago


    Is it ok to install these straight on, or do I need to trim any Bump Rubber? And if so, what are the exact instructions on trimming? Thanks.

    • A: There shouldn't be any need to trim your bump stops with these. You should be able to put the straight on.

      Tommy M. 2 years ago
    • A: There shouldn't be any need to trim your bump stops with these. You should be able to put the straight on.

      Tommy M. 2 years ago
    • A: There shouldn't be any need to trim your bump stops with these. You should be able to put the straight on.

      Tommy M. 2 years ago
  • Q: Fitment   wattana800440433 4 years ago


    I will order the Tein S Springs tomm but before I do can you confirm fitment for my car 05 STi which has a 18x8.5 Enkei Tuning Raijin GUNMETALl on 225/40R-18 Bridgestone Potenza RE970AS Pole Position XL

    • A: With out knowing exact offset, and measuring it there is no way to know for sure. But if you put your wheels on and they dont rub under full compression of the stock suspension then it should not be a issue with these springs.

      Kirill C. 4 years ago
  • Q: fitting  rrbrownlee2488646 4 years ago


    Will they fit with size 18 xxr 525 rims?

    • A: Fitment will depend on wheel size and other variables, but we cannot guarantee fitment with aftermarket wheels.

      Zach G. 4 years ago
  • Q: Tein S Tech Springs  nasti1 5 years ago


    I just threw a set of 245/45R17 tires on my 06 Sti, would this drop kit still allow for clearance (front fender wells etc...)

    • A: Do to variations such as wheel offsets and width, camber angles, and fender work done on a car we are not able to guarantee fitment with that size of tire.

      Kirill C. 5 years ago
  • Q: Stiff?  Trip 5 years ago


    So im thinking of purchasing these, there the only springs ive found that has the drop i want. Im wondering how stiff they are...its kind of the deciding factor between these and coilovers, i hate how noisy coilovers are because this is my daily. Are these as bad or not

    • A: The S-Techs will be stiffer than the H-Techs with more aggressive spring rates. A properly functioning coilover should not produce any noise and will allow for greater adjustability and performance than a lowering spring.

      paul559b5ed28149810a128b5c51 5 years ago
Subaru Impreza
WRX STI 2005, 2006, 2007WRX STI Limited 2007