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XIDA ACE coilover 90-05 Miata MX5


Product Description

Allow 8-10 weeks to build your set

 The new Supermiata Xida ACE use the longer Xida XL shock body, but with Tractive’s ACE valve and Semi-Active electronic damping. Intended for ride heights above 5”, up to 6.25″. The high end of the range is roughly OEM height. We will typically recommend the sweet spot around 5.5″ pinch weld on a MiataFor optimum ride quality on the street, we recommend using stock swaybars with Xida Ace.


  • State-of-the-art touchscreen controller with easy-access presets
  • Electronic semi-active adjustable compression & rebound adjustment together.
  • Full aluminum monotube construction
  • 46mm double digressive piston
  • Floating piston internal design
  • Adjustable height spring perches
  • Torrington thrust bearings
  • High Pressure nitrogen charged
  • Spherical bearing lower mounts
  • 2.25″ Hyperco springs
  • Damping sweep for front 1000~450 springs, rear 600~250
  • Damping adjustment at the wired remote.


  • OEM 99-05 Mazda upper mounts
  • Supermiata CNC machined aluminum spherical bearing upper mounts
  • Coaxial perches included with optional alloy upper mounts

Spring rates*

550/350 Race – Track or autocross focused, 40~100tw race or 200tw UHP
450/300 Sport – For high grip street tires, 200tw. Casual autocross or HPDE
300/200 Touring – Street comfort, not for 200tw or race tires

* Installation requires minor electrical connections. We recommend professional installation

Forum discussions about Xida XL and ACE:

Xida XL & Ace

The Gen2 Xida shocks are built by Tractive Suspension (Netherlands) and we spec Hyperco (USA) springs. The exceptional valving sensitivity produces both incredible grip over any paved surface and exceptional ride quality. Despite the surprising streetability, these are purpose built racing dampers intended for use under the most demanding motorsports environments.

Confused about ordering?

If you have a 90-97 Miata and do not have factory NB mounts and hardware, you can just add them to your Xida order for a complete ready to bolt in system.

If you are not sure which spring rate package to order for your project, give us a call or email. We’ll get the system matched exactly to your needs.

Xida info/assembly video


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