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Miata 0405 MS3Pro PnP
Miata 0405 MS3Pro PnP
Miata 0405 MS3Pro PnP
Miata 0405 MS3Pro PnP

Miata 0405 MS3Pro PnP Plug and Play

5.00 out of 5 based on 2 customer ratings
(2 customer reviews )

From: $1,199.00


USB to Serial Adapter -TunerStudio – optional

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SKU: MSPNPPro-MSM0405 Category: Tags: , , , , , , Brands: ,


Miata 0405 MS3Pro PnP Plug and Play Standalone Engine Management System for MazdaSpeed Miata

MegaSquirtPNP Pro Model #MSM0405 
2004-2005 USDM Mazdaspeed Miata with manual transmission

MS3Pro based Miata 0405 MS3Pro PnP takes plug and play engine management to the next level!  Easy to use and install!    

Miata 0405 MS3Pro PnP Features:

  • Fully Plug and Play Installation – No wiring required for basic functionality.
    • Average install time is under 1 hour!
  • Base map is pre-loaded to help your engine start on the first turn of the key
  • Real time tuning and data logging with a laptop connection
  • 8 GB internal data logging with built in SD card
  • Supports most aftermarket wideband sensors

Fully Tunable Engine Control!

  • 16×16 Fuel Tables allow high resolution tuning
  • 16×16 Ignition Tables
  • Multiple Acceleration enrichment strategies
  • Closed Loop Idle Speed Control
  • Air Conditioner Control
  • 4 sequential fuel injector channels with individual trim tables
  • Onboard peak and hold drivers support both high and low impedance injectors – No external ballast resistor is needed!
  • Allows removal of stock airflow meter

Miata 0405 MS3Pro PnP Advanced Feature Set (Included!)

  • 12×12 Air Fuel Ratio Target Tables for use with wide band O2 sensor for precise tuning and table trim.
  • VVT support if swapping to a later VVT motor
  • Programmable voltage regulator control for NB alternator swaps
  • Multiple traction control strategies
  • Built-in 3-step rev limiter / launch control with flat shift and burnout rev limiter
  • Real time barometric correction
  • Internal 4-bar MAP sensor reads up to 44PSI of boost
  • Overboost protection
  • Closed loop boost control (Requires EBC solenoid kit – stock boost control solenoid does not allow adjusting boost level)
  • Rally style anti lag
  • Water injection control – on/off or variable
  • Knock sensor input with adjustable sensitivity, crank angle windowing, and more
  • Table switching input. Change fuel and spark maps on the fly for different fuels, nitrous activation, etc.
  • Input for flex fuel sensor – switch between E85 and gasoline on the fly!
  • CANBus connector allows interconnection of other MegaSquirt-compatible devices for additional functions (EGT Input, Automatic Transmission Controller, Additional Sensors…..the possibilities are limitless!

What you get in the box:

  • Miata 0405 MS3Pro PnP ECU
  • MSPNP RS232 serial tuning cable, 6′ (USB adapter sold separately, if needed)
  • Tuning Software and Documentation on USB memory stick
  • 6′ Vacuum Hose for MAP Signal and ‘T’ fitting
  • Four Screws for ECU mounting
  • Registered version of TunerStudio and MegaLog viewer included

Customers' review

Rated 5.00 out of 5 stars
2 reviews
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2 reviews for Miata 0405 MS3Pro PnP Plug and Play

  1. 5 out of 5

    This unit is a fantastic improvement over the stock ECU! The included base map was close enough to get me running with no issue, and after driving around for a couple of hours I took it to the dyno. Two hours later it was tuned to my mods (FM intake & exhaust, 525cc injectors) and putting down 223 HP/231 lb.-ft., with 150 lb.-ft. available at 3000 RPM, and 200 lb.-ft. at 4000 RPM. The MSM0405 provides a much smoother power delivery than the stock ECU - no more "light switch" powerband!

    John P.

    Was this review helpful to you? 3 of 3 people found this review helpful

  2. 5 out of 5

    Another superb PnP from the company that has changed the definition of standalone powertrain management.

    Was this review helpful to you? 1 of 2 people found this review helpful

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Where is this product assembled?

  • This product is assembled in Suwanee, Georgia, USA.

I have swapped a different year engine, will this still work?

  • You must use the MSPNP that matches the year of the engine harness you are using.

Is this all that I need to get started tuning my Miata?

  • This is a complete package, including USB adapter. But there are some accessories you may want to use to get the most out of this unit.

Do I need to swap to a GM style intake air temperature to remove the mass air flow sensor?

  • No, we use the stock IAT sensor on the Mazdaspeed application.

Questions & Answers

  1. 0 votes

    This ECU comes loaded with a map for a stock Mazdaspeed Miata, and installation is very simple - click here for full directions. The included map will start the engine if it is on the original injectors and able to run on the stock ECU. For tuning in your area, I recommend talking to Jordan at PowerSquirt Industries - you can contact him through the PowerSquirt website or his Facebook page.

  2. 0 votes

    Sorry, the Mazda 3 used a completely different ECU design with a different connector. This unit will not fit your application.