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Granatelli Motor Sports High Performance Slot-Style MAF Meter / Sensor; Calibrated (15-17 GT)

Item 391701
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Calibrated for Optimum Performance
      • Improves Performance from 2000 RPM to Red Line
      • Chassis Dyno Proven to Add 10 to 18 Horsepower
      • Improves Mileage and Throttle Response
      • Improves Airflow Compared to Stock
      • Direct Fit Plug-N-Play Replacement
      • Installs in Less than 15 Minutes
      • Sold Individually
      • Fits 2015-2017 GT Mustangs


      Calibrated for Optimum Performance. Mustang owners are always on a quest for more power. Whether you're starting out simple with a cold air intake or going big with forced induction there is one thing that is holding you back from big power numbers, the factory MAF Sensor. Mass Air Flow (MAF) Sensors are designed to read the volume of air flowing through your Mustangs intake tube. But, unlike the limited factory calibrated mass air meter that "pegs" due to increased air flow, Granatelli's Sensor has been custom scaled and calibrated to accurately read the higher volume of air created by aftermarket cold air kits and force inducted applications to ensure optimum performance.

      Power and Performance. With a noticable increase in airflow over the stock sensor you can expect to see chassis dyno proven increases of 10 to 18 horse power with improvements in performance starting from 2000 rpm's all the way to red line. By installing a GMS High Performance Calibrated MAF Sensor you will not only see an improvement in power and performance, but you will also see an improvement in your fuel mileage and throttle response.

      Plug-N-Play Installation. Designed to be a direct fit plug-n-play replacement for the factory sensor this Granatelli Motor Sports Slot-Style MAF Meter installs with just basic hand tools. No extra modifications are required for an easy 15 minute installation. All necessary parts and instructions are included.

      Application. This Granatelli Motorsports Slot-Style MAF Sensor Meter is specifically designed to fit 2015 to 2017 GT Mustang models equipped with the Coyote 5.0L 4 valve V8 engine. Sold individually.

      Fitment: 2015 2016 2017 Details

      MPN# 80065024

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (13)

      Write a Review

      Ratings Summary

      4.4 out of 5 overall rating from 13 customers

      Installation Time: Less than 1 Hour

      • September 20, 2019

        2 2016 GT - LeonardD Installation Time: Less than 1 Hour

        Granatelli MAF Sensor

        I see zero performance gain, and, a decrease fuel consumption. Save your $$$$

        Helpful (0)
      • January 26, 2019

        5 2016 GT - RobertS Installation Time: Less than 1 Hour


        Easy instal. Works great with my CandL racer intake.

        Helpful (1)
      • January 03, 2019

        2 2015 GT - CodyB Installation Time: Less than 1 Hour

        No real difference.

        The install is very simple, undo the MAF red clip and remove two screws. I really don’t feel much of a difference in performance. I did not get any error codes after the install. Save your money for another mod. The packaging was good and secure.

        Helpful (3)
      • August 28, 2018

        5 2016 GT - TomE Installation Time: Less than 1 Hour

        Bolt on performance

        Super easy to install and I found immediate improvement in throttle response.

        Helpful (2)
      • August 14, 2018

        5 2016 GT - FranklinH Installation Time: Less than 1 Hour

        Great performance addition for my Mustang GT!

        Since adding Borla ATAK exhaust and Holley Intech CAI the performance MAF Sensor was the perfect addition to complement everything. I have noticed improved response and power throughout the entire rpm range, not just the upper rpm range as advertised. It appears that I am also getting better gas mileage than before. I was apprehensive at first because of the cost but I am glad I made the purchase now.

        Helpful (2)
      • May 16, 2018

        4 2015 GT - Dhoward21 Installation Time: Less than 1 Hour

        I like it !

        The item looks good seems to be working I haven’t had it in very long but I can tell if I tell a difference not much to the instructions but truly not much to the install I’m happy with it ! The item is a little pricey

        Helpful (4)
      • January 26, 2018

        5 2015 GT - Krzysztof Installation Time: Less than 1 Hour

        GMS MAF sensor

        It is wunderfull. The engine run very, very best. I recomend this MAF sensor. Krzysztof from Poland

        Helpful (7)
      • November 28, 2017

        5 2015 GT - StephenN Installation Time: Less than 1 Hour

        Great Performance

        Works great. Took maybe 5 minutes to install and i can tell the difference right out of the gate

        Helpful (6)
      • July 06, 2017

        5 2015 GT - AGMattocks Installation Time: Less than 1 Hour

        GMS High Performance Slot-Style MAF Meter

        Very easy install too less than five minutes. Noticeable power gains from zero to redline. I think it enhances my 93 octane tune.

        Helpful (7)
      • June 24, 2017

        5 2015 GT - VernonM Installation Time: Less than 1 Hour

        Great Replacement!

        Really made a difference over stock! More response and smoother idle! Highly recommend!

        Helpful (5)

      Questions & Answers (16 answers)

      5 Top Rated Questions

      Does this work with a Ford Racing performance power pack level 2?

      • Yes, this MAF is compatible with the power pack 2 kitby Ford Performance. 

      Helpful (3)

      I have the BBK 85mm Throttle Body installed with no custom tune, would there be any gain to installing this MAF Meter?

      • The GMS High Performance Slot-Style MAF Meter / Sensor will give you some small additional gains yes. However, you will want to have your car tuned when you do this.

      Helpful (2)

      Is this MAF sensor redundant if you're getting a custom tune? In other words, is the sensor itself a higher performance instrument (more accurate, faster response, etc.) or does this just represent a stock MAF sensor with adjusted parameters? I've read that the "calibration" referenced is similar to a short-cut tune that adjusts airflow parameters of the meter, and won't reset if the car is flashed. I'm not sure if the same results could be achieved through a custom tune, or if the car would actually benefit from both. Any info is appreciated, thanks.

      • I suggest just getting a custom tune. That will accommodate all the mods you have done to give you the maximum performance possible. You do not need a calibrated MAF.

      Helpful (2)

      I have a 2017 5.0 with a 85mm BBK and Airaid CAI and a 91 SCT Tune. By adding this MAF can I expect gains? Also will it run with my tune or do I need a custom tune?

      Will this meter work with my 2016 5.0L Roush Stage 3/ Supercharged Mustang?

      Post Your Question
      10 More Questions
      Does the MAF meter work with a Ford Racing performance power pack level 3? 1 answer
      Will this work on a 2018 5.0 with a Roush CAI? 1 answer
      Does this item work with the Ford Performance Power Pack 1 kit? If it does is the performance gains really worth the cost? 1 answer
      Is this work for 5.0 GT with Ford performance GT350 voodoo intake manifold? 1 answer
      Ive seen that this will work with performance pack 2 from ford but will it be of benefit in hp as ford already tuned the car to 91 1 answer
      Will this sensor work with the PMAS air intake? 2016 GT. 1 answer
      Will this work with 2015 Mustang Roush Stage 3 supercharged engine? 1 answer
      Will This work with Asian Version of Mustang GT? 1 answer
      Does it work for the v6 mustang 1 answer
      What gains can you expect with stock airbox, and how does it effect with bama tunes (or any tunes from the SCT tuners), 2 answers

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) MAF Sensor

      Tech Specs

      Will It Fit My Mustang

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