Supermiata Tecna Coilovers for Mazda MX-5 NA NB

From: £1,554.00£1,402.63


Supermiata’s Tecna coilovers were designed from scratch to provide the best riding coilover suspension in this price bracket. With the ability to lower the car, Tecnas work great for Mazda MX-5s that are used as daily drivers or those which are dual duty and see some track work. Supermiata has created the Tecna to fill the gap between street and full-race setups, allowing you to carve up the back roads and compete in autocross/solos/tests, then drive back home again.

By opting for a one-piece body with ride height being adjusted via a single perch, Supermiata has engineered a damper specific to the NA NB application. This means the damper body can be longer, allowing a greater stroke to soak up larger bumps. Larger socks also contain more fluid to allow the damper to do more work before it becomes overheated. Supermiata’s Tecna coilovers are designed not to require servicing and carry a 10-year limited warranty, making them possibly the best coilover available for the street.

Tecna coilovers are available with a choice of spring rates, allowing you to customise them to your specific situation. For strict daily drivers Supermiata recommend the 6/4kg/mm spring rate which greatly improves handling without compromising on ride quality. For dual duty cars that see light track or other mild competition use the 9/6kg/mm option increases response and stability, allowing you to make the most of sticker semi-slick tyres such as the Nankang NS-2R.

Supermiata have engineered Tecna coilovers to work best with a pinch weld height—measured from the bottom of the pinch weld to the ground—between 120mm and 150mm. The rear should be approximately 3mm higher than the front for the best handling balance. Daily driven cars are recommended to be set up at around 135mm. Complimenting the sport 9/6kg/mm spring rate with a 24mm front OEM rear anti-roll bar will further improve the handling feel.

Real World Reviews from Owners


  • 10 year limited warranty
  • 6/4kg/mm spring rates (336/224 in-lb)
  • Optional Sport 9/6kg/mm spring rates (504/336 in-lb)
  • Adjustable ride height
  • 30 position adjustable damping
  • 120mm stroke front and rear
  • Pinch weld height range 4.75- 6″
  • CNC machined one piece steel bodies
  • NA/NB Miata specific offset CNC machined 6061 T-6 aluminum end caps
  • Monotube design
  • 44mm piston
  • Rubber dust boots
  • High-pressure nitrogen charged
  • Euro-spec synthetic fluid
  • Fully assembled with our NB upper mounts (Bolt-in for all 90-05 Miatas)
  • Shipped pre-adjusted and ready to install
  • C-spanners included for adjusting ride height

Additional information

Shipping Weight 22.5 kg
Shipping Dimensions 74 × 39 × 20 cm



Street 6/4kg/mm, Sport 9/6kg/mm


Mk1 (89-98), Mk2 (98-05)

Warranty information

Warranties cover defects in materials and workmanship only. Warranty is for replacement of a similar product, repair of the original product or refund of the purchase value only and excludes all labour and incurred charges including towing, fitting, inconvenience, and purchases of other manufacturer's products. The warranty is good for the period stated in the additional info tab from the date of purchase. Mileage warranties are for road use only and proof of mileage is required. Products must be installed by an independent experienced professional mechanic and the suspected defect must be present at the outset. The warranty does not cover damage caused by incorrect installation, failure to comply with the maintenance requirements of the vehicle, processing or otherwise changing the product, ordinary wear and tear, or any other external influences. Warranties are invalid if the product is used for racing, rallying, drifting, track days or any other form of motorsport or competition. Please refer to the manufacturer's own warranty documentation for more information.

Making a warranty claim

Proof of purchase receipt showing the date of purchase, proof of mileage at installation, proof of current mileage and invoice of the work undertaken by an independent experienced professional mechanic must be supplied along with the returned products for a warranty claim to be considered. If your vehicle needs to be used whilst your warranty claim is considered replacement parts from the same manufacturer should be purchased through BOFI Racing. In the event of a successful warranty claim, we will refund the card that was originally used to purchase the replacement parts, in full or in part depending on the nature of the claim. BOFI Racing reserves the right to make full or partial compensation at its sole discretion depending on the condition and mileage use of the returned suspect parts. For example, if you have used the part for several thousand miles before a defect is noticed, only partial compensation may be offered.

Make Model Year
Mazda MX-5 I (NA) 1989 - 1998
Mazda MX-5 II (NB) 1998 - 2005

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