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1986-88 Ford Mustang 5.0 Pro-M Mass Air Conversion Wiring Harness - Fox Body by Pro-M

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Mustang Pro-M Mass Air Conversion Wiring Harness (86-88) 5.0

Looking to put a mass air meter on your 1986-88 Mustang 5.0L? We have you covered with this mass air wiring harness!


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Market Price:$59.99
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  • Allows Mass Air Meter To Be Installed On Non-Mass Air Mustangs


  • Insulated Wiring
  • Easy To Follow Instructions
  • Quality Connectors
  • Fits 86-88 Ford Mustang

What's in the Box

  • (1) Wiring Harness
  • (1) Roll Of Looming
  • Instructions

Product Description

This is a mass air meter conversion wiring harness for your 1986-1988 Ford Mustang. It was developed to allow the use of a mass air meter on cars that were originally equipped with a speed density air intake setup. It comes complete with wiring, looming and easy to follow installation instructions.

* Requires use of a mass air PCM

* Some wire splicing is required

Product Videos

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!

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Customer Reviews

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3 reviews
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3 of 3 REVIEWS
3 of 3 REVIEWS

  Awesome kit
By on 1/28/2014
A little pricey, but definitely worth it. The kit saves tons of time.The instructions are a little vague though. Definitely do some research before starting the install, it will save you in the long run. Get everything you need, then put it all in. Oh and if you have a 1986 Mustang, the VSS is located behind the radio, not the driver side kick panel. Absolutely 100% add the wires from the VSS to the computer harness, your car will stall when coasting to a stop, meaning losing brakes and steering. It will also perform better when doing so.

Yes, I would recommend this item to a friend!

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  easy to install
By on 7/23/2014
I've used these many times for mass air conversions but this time I needed it for a wire tuck.

Yes, I would recommend this item to a friend!

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By on 4/28/2014
Recently installed my mass air and it worked perfectly. Directions were clear and had no issues doing my conversion.

Yes, I would recommend this item to a friend!

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Vehicle Applications

Ford Mustang - 1986 (86) - 1987 (87) - 1988 (88)

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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