$ 399.00

Note: if upgrading your existing KMiata ECU reflash to KTuner, you MUST include the number on the back of your ECU in the special instructions at checkout in order to receive the discounted pricing!

We’re proud to offer our customers another engine management option from KTuner.

Using KTuner as your engine management of choice provides you with full tuning capabilities, and also opens the door up to much less expensive OEM engine harnesses and ECUs.


KMiata supports KTuner in a Miata platform using the following parts:

  • 2003-2005 Honda Accord ECU, automatic transmission*
  • 2003-2006 Honda Element manual engine and charge harness
  • Denso A/F sensor, part number 234-9064 (available everywhere)

Best of all, we now stock Accord ECUs with leads already soldered into place, so you have the option to add an ECU to your order and receive a unit assembled and ready to go. No need to ship in your ECU and wait for it to be modified and returned. Our ECUs also ship with our clear KMiata ECU cover, pre-cut to fit your USB cable, for a clean look and ease of use. 

Also, since the K24 Honda Element engine harness is used, there is no need to change over to the K20 style knock sensor and crank position sensor. This setup is 100% plug and play.

Want to see a list of all features available with KTuner? Check out their website here for all specs.

*When using the Accord auto ECU, the MIL indicator light pinout is moved to E2. Our Element harness is already configured for this. In the software, just click Factory Output Controls > Output Tasks. Then change the Reverse Lockout Output (pin E2) to “Check Engine Light Control.” That’s it!

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