Miata 89-93 PNP Speeduino ECU

(3 customer reviews)


Get the most out of your mods. With SpeedyEFI’s PNP 90-93 Mazda Miata, you get full control of your tune. Every PNP comes loaded with firmware and SpeedyEFI’s hand-crafted base tunes get you up and running faster.

If you already have a VTPS and IAT sorted, go with this ECU. If you are starting from stock, we highly recommend the FULL kit found here: NA6 PNP FULL KIT.

6 in stock


Plug and Play engine management for your 90-93 Mazda Miata.

Additional information

Weight 32 oz

3 reviews for Miata 89-93 PNP Speeduino ECU

  1. Duy Nguyen (verified owner)

    The Speeduino has been great since day 1! Base tune makes a big difference and my little 1.6 actually pulls now. Customer service has been great and the guys at Speedy EFI have been helping me at every wall I hit.

  2. Lane Couey (verified owner)

    Megasquirt looks fancier but who cares when it’s under a floorboard. I have had both. Customer service/tech support is worth 50 stars. I will solely deal with speedy EFI for ANY fuel management on any vehicle from here on out.

    This is a company worthy of giving your hard earned dollars to.

    Solid construction of unit with tight pins and outstanding customer service.

  3. Nick Klein

    The ECU has been working great in my wife’s miata for over a year now. The power difference on that 1.6, especially down low, was immediately noticeable.

    More recently I had some questions about swapping a VVT motor into this same car and Chris was friendly, knowledgeable, and replied quickly.

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