TEIN Street Basis Z Coilovers Mazda Miata NA/NB (1990-2005) GSM64-8USS2
TEIN Street Basis Z Coilovers Mazda Miata NA/NB (1990-2005) GSM64-8USS2
TEIN Street Basis Z Coilovers Mazda Miata NA/NB (1990-2005) GSM64-8USS2
TEIN Street Basis Z Coilovers Mazda Miata NA/NB (1990-2005) GSM64-8USS2

TEIN Street Basis Z Coilovers Mazda Miata NA/NB (1990-2005) GSM64-8USS2

Regular price
Sale price

Add to cart for shipping quote

Quantity must be 1 or more

Fitment Information

  • 1990-1998 Miata (NA)
    • Lowering Range: 0.5" to 3.0" Front and 0.2" to 2.8" Rear
  • 1999-2005 Miata (NB)
    • Lowering Range: 1.3" to 3.9" Front and 0.7" to 3.7" Rear

Specs & Features

  • Spring Rates: 392 lb Front and 336 lb Rear
  • Requires the reuse of OEM Upper Mounts
  • Fixed Damper Settings (non adjustable)
  • Includes a full set of 4
  • 12 Month Warranty
  • Genuine TEIN

These TEIN Basis Z Miata Coilovers are the most popular kit we sell for the Miata NA and Miata NB.  Gives your Miata a much nicer stance, has the ability to lower a good amount to clean up fender gap and offers much better handling and performance over the tired and worn OEM suspension. The price might be cheap, but TEIN coilovers have a great reputation for performance, quality and longevity!

Note: Image is only a representation of the coilovers.  TEIN doesn't have vehicle specific images.  Your coilover will be specific to your vehicle.  If you have any questions about this kit, please contact us.

    Product Description

    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.

    TEIN coilovers are built from TEIN's direct knowledge of suspension products due to their extensive racing history.  TEIN Street Basis Z Coilovers are TEIN's entry level coilover that gives you all of the benefits of a high quality height adjustable coilover at an entry level price. 

    The TEIN Street Basis Z coilover is designed to provide the feeling of a sports suspension with an aggressive stance.  Developed to have a shortened shell case that provides optimum damper stroke at a low vehicle height allowing your car to have a good ride even when low.  Ride height is adjutable via the TEIN ZT coated threaded sleeve.


    • Steel Construction
    • No Sag Springs
    • Twin Tube Internal Design
    • Powder Coated Damper Body
    • Non-welded ZT coated Adjustment Tube
    • Full Length Dust Boots (some models re-use OEM dust boots)
    • 1-piece Aluminum Spring Seat with Delrin Thrust Washer

    Your purchase includes:

    • 4 TEIN Coilover Shocks
    • 4 TEIN Coilover Springs (no sag version)
    • 4 Rubber Bump Stops
    • 2 Hook Spanners
    • 4 Spring Seats
    • 4 Spring Locks
    • 4 Dust Covers (some kits reuse stock dust covers)
    • 4 Delrin Thrust Washers
    • 1 TEIN Sticker Sheet
    • 1 Instruction Manual

    Inlcudes a one year limited warranty from TEIN when purchased through an authorized dealer such as Redline360

          More in this category

          Mazda Miata Coilovers
          Mazda Miata NA Parts
          Mazda Miata NB Parts
          TEIN Street Basis Z Coilovers

          Reviews on this product

          Customer Reviews

          Based on 4 reviews
          5 Star
          4 Star
          3 Star
          2 Star
          1 Star
          Write a Review Ask a Question
          • Reviews
          • Questions

          Thank you for submitting a review!

          Your input is very much appreciated. Share it with your friends so they can enjoy it too!

          Anthony H.
          United States

          Good Coils

          Shipping was crazy fast, everything was perfect


          These coilovers are great

          i have only had them for a little over 2 months now. My first impressions were they feel more comfortable than stock but once you start taking corners at a faster speed you can feel the difference right away. The spring rates that are stated arent the correct spring rates( according to tein.com) front: 392 lb/in or 7 kgf/mm rear: 336 lb/in or 6 kgf/mm the rear spring rates seamed a little to high for a front engine/rear wheel drive but after letting the suspension settle there is no oversteer or understeer when putting the car under load it feels neutral there is still some body roll but i eliminated that with a front eibach swaybar and stock rear sway bar the fixed dampening seems to be spot on with the spring rates. Some may say there a little on the soft side but for daily driving and canyon runs these are perfect. The price is amazing these are a great **** for your buck the quality is amazing and the performance is spot on.


          Great coilovers for the price!

          They ride really nice and gives the car a proper stance that it should have had to begin with. They do seem a bit soft but very comfortable for daily driving. Build quality is great, they looked great and were easy to install. Wish you could go a little bit lower, but I can't complain.


          This is definitely one of my first stops when shopping around!

          I wanted to replace the stock suspension with something a little better while burning as little of my play budget as I could. I chose these over the Racelands. Easy to install and adjust, gave the car a killer stance, rear now naturally has a bit of negative camber (-1.3 Deg) which is almost perfect for a road setup. Car sits on 15x7 Konig Heliums and 205/50 tires. I set the front height to 12.25" (hub to fender), rear at 12.75". Car rides perfectly, a bit stiffer than stock (no idea how old the Sachs Suspension was), but still ok as a DD. Car corners HARD, and almost completely flat. New Sways, links, and bushings are next. I'm very happy, allowing me to enjoy the car as I continue to build it and move to power. When the Teins get replaced with an Ohlins setup, I won't be upset at the $$ I spent on these as the interim. Lastly, the guys at Redline360 are fantastic. Killer customer service and great communication.

          Ordering from Redline360

          Redline360 is an Authorized Dealer so we only sell authentic and genuine parts and accessories.

          Order updates, tracking and info
          Our goal is your complete satisfaction. Upon ordering, you will receive an email confirmation of your order along with your invoice. You will be able to log into our website 24/7 to check on your order at any time. Your order can ship anywhere from 6-48 hours from the time of order, depending on when you placed the order. Once your order ships, we will email you a tracking number so you can track your package. We will never charge you until your order is ready to ship.

          4 warehouse locations ready to serve you!
          We ship from 4 locations around the United States so you receive your part as quick as possible. Not every warehouse stocks all the same parts, so the closest warehouse to you that has the part in stock is where your order will ship from. We ship from California, Michigan, Texas and Pennsylvania.

          Secure Ordering
          We process payments through PayPal, the absolute safest and most secure way to pay online! This ensures we also never store your credit card number, since we are never exposed to it. You can pay with Visa, MasterCard, American Express, Discover or your PayPal Account. If you do not have a PayPal account, simply select the credit card option at the PayPal screen to place your order.

          Questions? Contact us.

          Actual item may vary from picture