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MS3Pro Plug and Play E369395 for 1993-1995 BMW 325 M50 and M3 S50

From: $1,499.00


USB to Serial Adapter - Works with TunerStudio! – optional

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SKU: MSPNPPro-E369395 Categories: , Brands: ,


MS3Pro Plug and Play Standalone Engine Management System

Replace your “413” DME with a tunable racing ECU! Allows tuning your BMW with a laptop to handle any mods you can throw at these engines!

Fits the following applications. Confirmed for US market vehicles.

  • 1993-1995 BMW 325 with M50 motor and manual transmission
  • 1995 BMW M3 with S50 motor and manual transmission
  • 1993-1995 BMW 525 with M50 motor and manual transmission

European market M3 compatibility is not confirmed at this point. Does not fit the earlier M50 non VANOS applications.

MegaSquirtPNP Pro Model 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
  • 6 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 MAF sensor
  • VANOS control

Advanced Feature Set (Included!)

  • 12×12 Air Fuel Ratio Target Tables for use with wide band O2 sensor for precise tuning and table trim.
  • Multiple traction control strategies
  • Built-in 3-step rev limiter / launch control with flat shift and burnout rev limiter
  • Time based timing / boost increase after launch
  • Real time barometric correction
  • Internal 4-bar MAP sensor reads up to 44PSI of boost
  • Overboost protection
  • Closed loop boost control (Requires DIYAutoTune.com EBC solenoid kit)
  • CO2 based boost control
  • Set boost by RPM and throttle, ground speed, or gear
  • 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:

  • MegaSquirtPNP-Pro ECU
  • RS232 tuning cable
  • Tuning Software and Documentation on USB memory stick with three base maps included
    • Stock M50
    • Stock S50
    • Modified S50 with upgraded cams and independent throttle body intake
  • 6′ Vacuum Hose for MAP Signal and ‘T’ fitting
  • ECU mounting brackets (Note – currently these are in production, and will be shipped separately once they are ready)
  • Registered version of TunerStudio and MegaLog viewer included

Direct replacement for the following DME part numbers:

  • 0 261 200 413

If your ECU / DME has a different part number, please contact us to see if this is compatible.

Where is this product assembled?

  • This product is assembled in Gainesville, 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. It can run later engines, such as the M52 or S52, if they are using the '93-'95 wiring harness and sensors.

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

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

What about OBD2 equipped E36s?

  • This unit can work with later E36s that are swapped over to the '93-'95 wiring and sensors.

Questions & Answers

  1. 0 votes

    You can connect the LC-2 to either the factory narrow band signal wire or to the O2 input on the expansion connector at the back of this ECU.

  2. 0 votes

    Please send us the pinout for this DME, and we can check if this one is compatible.

  3. 0 votes

    Unfortunately, the 402 pinout is a bit different from the 413. You could potentially repin the 88 pin connector. We're looking into making a 402 version as well, but we wanted to get the 413 version out first as it fit a wider range of applications.

  4. 0 votes

    As long as you are using a "413" series ECU as part of the swap, yes. The only things that would not be functional would be smog equipment type stuff as this is a race-only ECU and not intended for street use.

  5. 0 votes

    No - you can run on a narrow band once you have the tune set up for what your engine needs. The wideband O2 sensor is optional.

  6. 0 votes

    Probably not - this one replaces the Bosch "413" controllers, but I expect this one would use a Siemens ECU with a different pinout.

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