1989-93 Mustang Pro-M 75mm Mass Air Meter - 39lb Injectors & Fenderwell CAI 5.0 by Pro-M

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  • Pro-M Mustang 75mm Mass Air Meter  - 39lb Injectors & Fenderwell CAI (89-93) 5.0
Pro-M Mustang 75mm Mass Air Meter  - 39lb Injectors & Fenderwell CAI (89-93) 5.0

Ensure your Mustang is calibrated for bigger injectors properly with this 1989-1993 Mustang Pro-M mass air meter for 39lb injectors!

Item #PMA-12579GB
MPN# FMC-75BP-M93-39C

Everyday Low Price: $229.99

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  • Calibrated For 39lb Injectors
  • Increased Throttle Response
  • Direct Replacement


  • 75mm Diameter
  • Black Polymer Housing
  • Modern Sampling Element
  • Fits Fenderwell Cold Air Intake

What's in the Box

  • (1) 75mm Mass Air Meter

Product Description

Pro-M 39lb Injector Mass Air Meter
Complete your 39lb fuel injector upgrade with this 1989-1993 Mustang Pro-M mass air meter! Any time you upgrade the fuel injectors you need to change the calibration to ensure you computer matches the increased fuel input. The modern sampling element is pre-calibrated and plugs into your stock harness for a truly plug and play installation. Along with increased fuel support, this 75mm MAF will improve throttle response and increase power due to the larger diameter opening.

Pro-M Quality
Pro-M's Bullet MAF is constructed using a high quality polymer housing that is built to last. The factory housing was a tiny 55mm diameter. This MAF is increased to 75mm in diameter which helps increase airflow and throttle response. The Bullet features a modern sampling element that uses a calibration process that results in a tolerance three times tighter than the OEM calibration. This meter is designed to fit Mustang equipped with a 90° fenderwell style cold air intake.

This Pro-M mass air flow meter does not come with a CARB OE number for California residents.

-Fits 1989-1993 Mustang 5.0

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Product Reviews (1)

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1 of 1 REVIEWS
1 of 1 REVIEWS

5 Stars   Great fit
By on 8/3/2016
Works great with my injectors. My only concern was the plastic breaking during installation but it handled it like a champ.

Yes, I would recommend this item to a friend!

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Vehicle Applications

Ford Mustang - 1989 (89) - 1990 (90) - 1991 (91) - 1992 (92) - 1993 (93)

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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