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MAC 80mm Mass Air Meter for 19lb Injectors (99-01 GT)

Market Price $196.60 You Save 13% ($25.65)
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  • Item 100781
  • MPN# MA9946

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    Features & Details

    • No More Pegging
    • Improves Airflow
    • 80mm Mass Air Meter Housing
    • Pre-Calibrated for 19lb Injectors
    • CNC Machined Billet Aluminum Housing
    • Housing Only - No Electronics Included
    • Fits 1999-2001 GT Mustangs
    No More Pegging. The MAC Performance 80MM Mass Air Meter Sensor is great for modified and custom applications where the stock mass air meter "pegs" due to increased air flow.

    Pre-calibrate. This MAC 80mm Mass Air Meter Housing is already calibrated for use with 19lb fuel injectors saving you time and frustration.

    Billet Aluminum Housing. CNC machined to exact specifications from high quality 6061 T6 billet aluminum for accuracy, this MAC Performance Mass Air Meter Housing is polished to a bright brilliant shine for impressive under hood styling.

    Application. The MAC Performance 80mm Mass Air Meter is specifically designed for use on the 1999 to 2001 GT Mustangs with 19lb fuel injectors. Fits with either the the stock airbox or a MAC Air System installed. Reuses stock electronics.

    Fitment: 1999 2000 2001 Details

    What's in the Box
    • (1) Mass Air Housing
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • GT - 99, 00, 01

    Customer Photos

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    1 Questions / 1 Answers

    Ask a Question

    How can this MAF be calibrated to any size fuel injectors when it has no electronics? I thought you simply transplant whatever MAF electronics you have into this housing? I am seriously interested in buying this as an upgrade to the restrictive stock MAF housing, but I have 24lb injectors with my stock MAF electronics calibrated via a BAMA program. If the listing is correct this only works with 19lb injectors, but that makes no sense to me, or any of the mechanics I know because this is only a housing. Please elaborate, Imam sure many people have wodered the same thing and considered buying this yet have not asked the question.


    • The MAC 80mm Mass Air Meter for 19lb Injectors uses a calibration tube that will allow injector changes without tune changes by swapping calibration tubes. The included calibration tube is setup for 19 Lb/Hr injectors, but the calibration tube can be replaced with one for a different flow rate, such as 24 Lb/Hr. This will allow the stock MAF sensor to work with 24 Lb/Hr injectors without changes to the tune.

      Rob D

    Helpful (1)

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    Customer Reviews (1) Write a Review

    Overall Rating 4.0

    out of 5 stars

    Installation Time:Less than 1 Hour

    • Performance Gain 3 3
    • Fit 5 5

    • 4/5

      Installation Time: Less than 1 Hour

      April 27, 2016

      Mass Air

      This unit flows way better than stock. It's better quality than the plastic oem unit as well. Took about 30-45 mins to install.


      Year: 2000 Submodel: GT

      Helpful (1)

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