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2003-04 Mustang MegaSquirt MS3Pro Plug and Play Standalone ECU Cobra by MegaSquirt Plug-N-Play Engine Management


Details   |  Reviews

Details   |   Reviews
2003-04 Mustang MegaSquirt MS3Pro Plug and Play Standalone ECU Cobra
2003-04 Mustang MegaSquirt MS3Pro Plug and Play Standalone ECU Cobra
2003-04 Mustang MegaSquirt MS3Pro Plug and Play Standalone ECU Cobra
2003-04 Mustang MegaSquirt MS3Pro Plug and Play Standalone ECU Cobra
2003-04 Mustang MegaSquirt MS3Pro Plug and Play Standalone ECU Cobra
2003-04 Mustang MegaSquirt MS3Pro Plug and Play Standalone ECU Cobra
2003-04 Mustang MegaSquirt MS3Pro Plug and Play Standalone ECU Cobra
2003-04 Mustang MegaSquirt MS3Pro Plug and Play Standalone ECU Cobra
2003-04 Mustang MegaSquirt MS3Pro Plug and Play Standalone ECU Cobra
2003-04 Mustang MegaSquirt MS3Pro Plug and Play Standalone ECU Cobra
2003-04 Mustang MegaSquirt MS3Pro Plug and Play Standalone ECU Cobra
2003-04 Mustang MegaSquirt MS3Pro Plug and Play Standalone ECU Cobra

Add the power of complete custom tuning for your 2003-2004 Mustang Cobra 4.6L DOHC with MegaSquirt's MS3Pro Plug and Play Standalone ECU! Available at LMR.com!

Item #LRS-MSPNPCOBRA
MPN# MSPNPPro-EECV_8DM-1

Everyday Low Price: $1,499.99

Low Stock Only 2 available. Ships tomorrow!
 This item is returnable. Details

Free Shipping over $99

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This product cannot be sold or shipped to the state of California. More Details
Due to Hurricane Ian, shipments to certain areas in Florida and South Carolina may experience delays or suspended service. FedEx Service Disruptions

Made in the USA

 Benefits

  • Mounts In Stock Location
  • Supports Most Aftermarket Wideband Sensors
  • Average Install Time Is Under 1 Hour!

 Features

  • Fully Plug and Play Installation
  • 4.6L Base Maps Pre-loaded For Easy First Startup

 What's in the Box

  • (1) 2003-2004 Mustang Cobra 4.6L DOHC MS3Pro Plug & Play ECU
  • (1) RS232 Tuning Cable
  • (1) 8GB USB Drive
  • (1) 6' Vacuum Hose For MAP Signal & ‘T’ fitting

MegaSquirt MS3Pro Plug & Play

Add serious tuning potential to your 2003-2004 Mustang Cobra 4.6L DOHC Mustang with MegaSquirts MS3Pro Plug and Play ECU. Designed with the DIY tuner in mind to give your Mustang all the options of a custom engine management system at a fraction of the cost. Easy to install and setup, this standalone ECU comes with a 4.6L base maps is pre-loaded to help your engine start on the first turn of the key. With an average install time under 1 hour, this unit installs in your stock ECU's place making it as streamlined and simple as possible.

Product Notes

  • Due to the custom nature of this product, please be sure to read all installation manuals provided. For any tech-related diagnosis, installation questions, or tuning info, please visit DIY Autotune for more detailed instructions and technical articles.

Fully Tunable Engine Control 

  • Complete FACTORY Dash Cluster Control. No need for aftermarket gauges! Saves you money! 
  • 16×16 Fuel Tables allow high-resolution tuning
  • 16×16 Ignition Tables 
  • Multiple Acceleration enrichment strategies
  • Closed Loop Idle Speed Control
  • Air Conditioner Control - 8 sequential fuel injector channels with individual trim tables 
  • 8 sequential ignition 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 the stock MAF sensor

Advanced Features Scroll Up or Down For More Features:

  • 12×12 Air Fuel Ratio Target Tables for use with wideband O2 sensor for precise tuning and table trim.
  • Multiple traction control strategies (JUST ADD A FRONT WHEEL VSS like this)
  • Built-in 3-step rev limiter / launch control with flat shift and burnout rev limiter
  • Time-based timing/boost increase after the launch
  • 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)
  • 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!
  • Supports many aftermarket dashes/displays such as Racepak, Race Technologies, AiM Sports, AEM, Dakota Digital, Autosports Labs, Perfect Tuning, etc.
  • CANBus connector allows interconnection of other MegaSquirt-compatible devices for additional functions (EGT Input, Automatic Transmission Controller, Additional Sensors.

This product is intended for off-road use only, and is not legal for use in emission restrictive states. Off-Road Disclaimer


Megasquirt Warranty

  • Ford Mustang - 2003, 2004
  • Sub Models: Cobra
  • Scalable to popular larger engine sizes.
  • To use a dual cooling fan set up you must source a PWM fan controller due to amperage draw concerns.
  • Use of an approved USB to Serial Adapter is recommended we suggest DIYautotune's USB to Serial Adapter
  • Use of the provided USB to Serial Adapter is recommended to interface modern laptops with the MegaSquirt PNP2 serial port.
  • The Megasquirts will NOT control computer-controlled automatic transmissions such as the AODE or 4R70W.
  • Due to the custom nature of this product, please be sure to read all installation manuals provided. For any tech-related diagnosis, installation questions, or tuning info, please visit DIY Autotune for more detailed instructions and technical articles.

California Residents:
Prop 65 Warning SignWARNING: Cancer and Reproductive Harm- www.P65Warnings.ca.gov

About This Brand


MegaSquirt Plug-N-Play Engine Management
When your time is money (or you just don’t have time to spare), it’s worth paying a bit extra to make the installation go as smoothly as possible. You don’t want to go through a list of options and specify what you want on the ECU like you were ordering a pizza, and you definitely don’t want to solder one together from a kit. You want something you can just take out of the box and have it work. This might take the form of a universal ECU that’s got all the inputs and outputs it needs to run a wide variety of applications when you wire it up, or it could be a plug and play system that plugs right in place of the existing ECU and is ready for you to start tuning. Unplug your stock ECU, plug in the MSPNP, run a vacuum line to it, and fire your engine up on the first turn of the key if it’s at all similar to stock. If you’re running bigger injectors there’s one setting to change and then you’re ready to fire your engine as well. It really is that easy. The MSPNP is a true plug-n-play ECU that we offer for an ever-increasing line of factory fuel-injected cars. It includes every feature you need to have full control over your fuel and ignition, plus features like electronic boost control, launch control, table switching, adjustable rev limiters, and other things normally not found in a stock ECU or even a hacked/re-tuned OEM ECU. Check out all of the Megasquirt ECU kits available here at LMR.com!

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