Mazda Miata DIY AutoTune ECU NIB - $749 (hayward / castro valley)

Mazda Miata DIY AutoTune ECU NIB 1 thumbnail

condition: new

make / manufacturer: DIY AutoTune

model name / number: MM9900

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This is a new, unused MS PNP Pro-MM9900 ECU from DIY AutoTune. It is in the original box, with all the cables and the TunerStudio registration. The ECU itself is still in the sealed tamper-evident wrapper. (See pictures)

Also available are two harnesses removed from Miatas:
P/N NA80-67-110E [0512-50]. $40.
P/N NC16-67-020E [0092-1019-60] $65.

Phone calls or emails only please (no text).
The items are in Modesto, CA

post id: 7925061599

posted: 2026-04-01 17:31

updated: 2026-04-15 19:06

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Mazda Miata DIY AutoTune ECU NIB - auto parts - by owner - vehicle...

This is a new, unused MS PNP Pro-MM9900 ECU from DIY AutoTune. It is in the original box, with all the cables and the TunerStudio registration. The ECU itself is still in the sealed tamper-evident...