1987-89 Ford Mustang Pro-M EFI Engine Management System - Fox Body by Pro-M

Mustang Pro-M EFI Engine Management System (87-89)

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  • Pro-M Mustang EFI Engine Management System (87-89)
Mustang Pro-M EFI Engine Management System (87-89)

Pro-M's 1987-1989 Mustang EFI engine management system can increase horsepower & tune your Foxbody!

Item #PMA-EFI8789
MPN# 87-89 KIT

Everyday Low Price: $2,449.95

Ships from supplier by Monday, December 12


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  • Direct Replacement EFI Harness
  • Pre-Installed Tune
  • OBD II Compatible


  • Factory Connections
  • Fully Laptop Programmable
  • One-Click Tuning

What's in the Box

  • (1) Pro-M EFI Engine Management System

Product Description

Easier Engine Management
This 1987-1989 Mustang Pro-M EFI engine management system is a great way to easily tune your Foxbody! With a fully programmable Pro-M EFI processor, tuning software, and a Foxbody specific engine management harness, this kit helps increase horsepower and engine efficiency. The kit features factory style connectors for a direct replacement bolt on system. Simply download and fill out the tuner form below to get your custom tune created!

-OBDII Compatible
-Fully Laptop Programmable
-Built In 2 Step Rev Limiter
-Full Control Over Air/Fuel Ratio & Timing
-Simple One-Click Tuning
-Store Unlimited Number Of Tunes
-Easy Forced Induction Tuning
-User Adjustable Rev Limiter
-Individual Cylinder Tuning
-Built In Electric Cooling Fan Control
-Includes Wide Band O2 Sensors With Digital Gauge
-Self Diagnosing Processor

-Fits 1987-1989 Mustang

Pro-M Racing LLC. Limited Warranty - Click Here

Product Videos

Pro-M EFI Engine Management System Install

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

Product Reviews

Vehicle Applications

Ford Mustang - 1987 (87) - 1988 (88) - 1989 (89)

About This Brand

Pro-M Racing was founded in 1989 by Bob Atwood, a Ford engineer who was instrumental in pioneering mass air technology. Pro-M quickly became the most respected name in the industry, offering the only real practical solution to the restrictive production mass air meters found in most of today's production Mustangs. We manufacture mass air meters in various sizes, shapes, and styles, as both direct bolt-in replacements, and in universal designs, to maximize your engine's horsepower potential, by allowing your engine to breathe to its fullest potential. Each mass air meter is individually calibrated specifically for you Mustang or Lighting application on one of our in-house flow benches specific to your particular application, and fuel injector size, eliminating the need for time consuming and expensive dyno tuning. Others make claims, but only Pro-M Racing possesses both the intellectual and physical properties necessary to calibrate your mass air meter to within two percent of what the OEM considers the perfect baseline.

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