Get your 03-04 V8 4V Mustang SVT Cobra ‘RACE-READY’ with MS3Pro Plug & Play! This ECU installs in less than an hour, arrives out-of-the-box ready for up to 44lbs boost, and is CAN enabled for seamless control of other MegaSquirt or third party devices. PLUS, MS3Pro handles Factory Dash Communication so stock gauges and warning lights function just like they should!

99-04 V8 Mustang GT MS3Pro Plug and Play Features:

  • Fully Plug and Play Installation – No wiring required for basic functionality
  • Average install time is under 1 hour
  • Base map 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/controllers
  • Base map 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/controllers such as our Spartan 2
  • FACTORY Dash Cluster Control! YES, we painstakingly decoded Ford’s dashboard communications to allow your dash to work just like factory!  No one else does this; everyone else leaves your dash dead in the water requiring an aftermarket display solution. This feature alone saves you $1,000 or more!

Does your speedometer read incorrectly due to a gear ratio change?  NOW you can easily fix it in TunerStudio and save a costly trip to your tuner!


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
  • 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 stock MAF sensor

Advanced Feature Set (Included):

  • 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)
  • 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
  • Configurable engine safeties, warning lights & overboost protection
  • Closed loop boost control (Requires EBC solenoid)
  • CO2 based boost control
  • Set boost by RPM and throttle, ground speed, or gear
  • Nitrous control strategies:
  •         2 channels of configurable staged or progressive control
  •         Supports wet or dry nitrous systems
  •         Add fuel, pull timing, etc.
  • 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…..the possibilities are limitless!

What you get in the box:

  • 2003-2004 Mustang SVT Cobra MS3Pro Plug and Play ECU
  • RS232 tuning cable
  • 8GB USB Drive including: Registered version of TunerStudio and MegaLog Viewer, Hardware Documentation & Base Map
  • 6′ Vacuum Hose for MAP Signal and ‘T’ fitting

Optional Extras: 

Stay tuned for more models arriving soon!!!

This is a drop-shipped item so our inventory status matches that of DIY/AMP. 

Write a review

Please login or register to review

MS3Pro Plug and Play - 03-04 Mustang SVT Cobra Terminator

  • Brand: DIYAutoTune
  • Product Code: MS3Pro-0304Cobra
  • Availability: 1
  • $1,499.99


Available Options


Related Products

Fuel Injectors | Siemens Deka | 60 lb/hr | 630 cc/min | High Impedance | EV1 | 8 Cyl

Fuel Injectors | Siemens Deka | 60 lb/hr | 630 cc/min | High Impedance | EV1 | 8 Cyl

Genuine Authentic Siemens Deka 4 Mototron injectors are a new take on high impedance injectors. Desp..

$389.99 $439.99

Fuel Injectors | Siemens Deka | 80 lb/hr | 875 cc/min | High Impedance | EV1 | 8 Cyl

Fuel Injectors | Siemens Deka | 80 lb/hr | 875 cc/min | High Impedance | EV1 | 8 Cyl

Genuine Authentic Siemens Deka 4 Mototron injectors are a new take on high impedance injectors. Desp..

$409.99 $459.99

Fuel Injectors | FID | 48 lb/hr | 500 cc/min | High Performance | Flow Matched | 8 Cyl

Fuel Injectors | FID | 48 lb/hr | 500 cc/min | High Performance | Flow Matched | 8 Cyl

The FID 525's are EV14 based High Impedance fuel injectors utilizing the latest in fuel injector tec..

$489.99 $509.99

Fuel Injectors | FID | 69 lb/hr | 725 cc/min | High Performance | Flow Matched | 8 Cyl

Fuel Injectors | FID | 69 lb/hr | 725 cc/min | High Performance | Flow Matched | 8 Cyl

The FID 725's are EV14 based High Impedance fuel injectors utilizing the latest in fuel injector tec..

$559.99 $599.99

MS3Pro Plug and Play - 96-98 Mustang GT | 96-98 Cobra

MS3Pro Plug and Play - 96-98 Mustang GT | 96-98 Cobra

Get your 96-98 V8 Mustang GT or 96-98 NA Cobra ‘RACE-READY’ with MS3Pro Plug & Play! This E..

$1,499.99

Wideband | AEM | X-Series | o2 Sensor Gauge Controller

Wideband | AEM | X-Series | o2 Sensor Gauge Controller

AEM’s X-Series Wideband UEGO Air/Fuel Ratio Sensor Controller Gauges are built upon unique, patented..

$199.95 $223.00

Wideband | AEM | X-Series | o2 Sensor Inline Controller

Wideband | AEM | X-Series | o2 Sensor Inline Controller

AEM’s X-Series Inline Wideband UEGO Air/Fuel Ratio Controllers are built upon unique, patented, 100%..

$184.95 $206.00

Wideband | Spartan 3 | o2 Sensor Lambda Controller Kit | ADV Sensor

Wideband | Spartan 3 | o2 Sensor Lambda Controller Kit | ADV Sensor

Go twice as fast! With a response time of just 10ms, Spartan 3 is more than twice as fast as any Wid..

$229.99 $239.99

MS3Pro Plug and Play - 99-04 Mustang GT | 99-02 NA Cobra | 03-04 Mach 1

MS3Pro Plug and Play - 99-04 Mustang GT | 99-02 NA Cobra | 03-04 Mach 1

Get your 99-04 V8 Mustang GT, 99-02 NA Cobra or 03-04 Mach 1 ‘RACE-READY’ with MS3Pro Plug &..

$1,499.99

Wideband | Spartan 3 Lite V2 | o2 Sensor Lambda Controller Kit | LSU 4.9 Sensor

Wideband | Spartan 3 Lite V2 | o2 Sensor Lambda Controller Kit | LSU 4.9 Sensor

Go twice as fast! With a response time of just 7ms, Spartan 3 Lite V2 is more than twice as fast as ..

$132.50 $135.99

Digital Dash | 94-04 Mustang | 12.3 Inch | Standard | DD-EFI

Digital Dash | 94-04 Mustang | 12.3 Inch | Standard | DD-EFI

Megasquirt Digital Dash12.3″ Standard PNP Dash for 94-04 MustangThe DD-EFI 12.3″ Widescreen Digital ..

$699.95

Digital Dash | 94-04 Mustang | 12.3 Inch | Pro | DD-EFI

Digital Dash | 94-04 Mustang | 12.3 Inch | Pro | DD-EFI

Megasquirt Digital Dash12.3″ Pro PNP Dash for 94-04 MustangThe DD-EFI 12.3″ Widescreen Digital Dash ..

$999.95

Digital Dash | 10.3 Inch | Pro | Bezel | DD-EFI

Digital Dash | 10.3 Inch | Pro | Bezel | DD-EFI

Megasquirt Digital Dash10.3″ Pro PNP Dash with Universal BezelThe DD-EFI 10.3″ Widescreen Digital Da..

$999.95

Digital Dash | 10.3 Inch | Standard | Bezel | DD-EFI

Digital Dash | 10.3 Inch | Standard | Bezel | DD-EFI

Megasquirt Digital Dash10.3″ Digital Dash with Universal BezelThe DD-EFI 10.3″ Widescreen Digital Da..

$699.95

Digital Dash | 10.3 Inch | Standard | Mount | DD-EFI

Digital Dash | 10.3 Inch | Standard | Mount | DD-EFI

Megasquirt Digital Dash10.3″ Digital Dash with Universal MountThe DD-EFI 10.3″ Widescreen Digital Da..

$699.95

Digital Dash | 12.3 Inch | Pro | Bezel | DD-EFI

Digital Dash | 12.3 Inch | Pro | Bezel | DD-EFI

Megasquirt Digital Dash12.3″ Pro PNP Dash with Universal BezelThe DD-EFI 10.3″ Widescreen Digital Da..

$999.95

Digital Dash | 12.3 Inch | Standard | Bezel | DD-EFI

Digital Dash | 12.3 Inch | Standard | Bezel | DD-EFI

Megasquirt Digital Dash12.3″ Digital Dash with Universal BezelThe DD-EFI 12.3″ Widescreen Digital Da..

$699.95

Digital Dash | 12.3 Inch | Standard | Mount | DD-EFI

Digital Dash | 12.3 Inch | Standard | Mount | DD-EFI

Megasquirt Digital Dash12.3″ Digital Dash with Universal MountThe DD-EFI 12.3″ Widescreen Digital Da..

$699.95

Digital Dash | 12.3 Inch | Pro | Mount | DD-EFI

Digital Dash | 12.3 Inch | Pro | Mount | DD-EFI

Megasquirt Digital Dash12.3″ Pro PNP Dash with Universal MountThe DD-EFI 12.3″ Widescreen Digital Da..

$999.95

Tags: MS3, Megasquirt, MS3Pro, Pro, Plug & Play, 2003, 2004, 03-04, Mustang, SVT, Cobra, Termintor, V8