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  1. Heavy Gauge Fuel Pump Pigtail For 86-97 Mustangs

    Heavy Gauge Fuel Pump Pigtail For 86-97 Mustangs

    $39.99

    The Pro-M Racing Fuel Pump Pigtail is intended for use with high volume “In Tank” fuel pumps, and heavy duty wiring kits for those pumps. The pigtail uses 12 gauge wire which allows you to use the proper gauge wire to power your fuel pump, rather than splicing large wire to the small wires used on the original fuel pump harness connector. Learn More
  2. TFI Distributor Shutter Wheel

    TFI Distributor Shutter Wheel

    $69.99

    The Truth About TFI Ignition, And Aftermarket TFI Distributors
    The Ford TFI ignition system may best be known for the troublesome TFI module that would fail when it got hot. The engine would run for about half an hour, the TFI module would fail, and you’d be stuck on the side of the road. After some time to cool off, the engine would start back up, and you’d be on your way, but once it warmed back up again, you were again stuck on the side of the road.
    It’s truly a shame that this is how TFI will be remembered. The truth is that the TFI ignition system was actually pretty ingenious. Yes, there were issues, but Ford did address them, and today a TFI system built with genuine Ford parts is actually a very good and very reliable ignition system.
    The ingenious part of the Ford TFI system was that it allowed you to use the distributor as a camshaft and crankshaft position sensor, which allowed the ECU to fire the fuel injectors sequentially. Today, we actually use this same principal to fire multiple coils sequentially, which provides for a very simple, yet very effective way to adapt multiple coils systems to older engines that were not originally equipped with multiple coils systems. The way the TFI system works is pretty simple. There is a toothed wheel (the Shutter Wheel) mounted to the distributor shaft. The wheel has eight teeth (one for each cylinder), one of which is narrower than the other seven. The narrow tooth represents cylinder number one. These teeth pass through a hall effect sensor. The sensor sends a signal to the TFI module, which in turn fires the coil. The ECU monitors the square wave pattern created by the shutter and hall sensor, and uses this to determine engine position and RPM. Simple...
    The real trouble started when the aftermarket got involved. Aftermarket companies started making replacement hall sensors and TFI modules. The hall sensors are absolute garbage. If you buy a hall sensor from the parts store, you’ve got a very good chance it will not work right out of the box. The ones that do work will likely fail. It’s just a matter of when. They often fail when they get hot, and then start to work again when they cool, much like the old TFI modules. Because of this, people will often misdiagnose the problem, and replace the TFI module, only to find later that they are stuck on the side of the road again. Even the ones that do work often produce such a poor quality signal that it is difficult for the ECU to properly determine engine position.
    Then the aftermarket started building replacement performance TFI distributors. While pretty to look at, these distributors actually represent a few steps backwards:
    (1) They use the aftermarket hall sensors. The good news is that you can still buy an original Ford hall sensor and install it in any of the aftermarket distributors.
    (2) The shutter wheels they manufacture are NOWHERE NEAR the quality of the originals. The original Ford shutter was held to a tolerance of one half of one degree. The aftermarket ones are so bad, you can often see the difference in the width of the teeth with the naked eye! The result of this will be an inconsistent spark advance from cylinder to cylinder.
    These distributors DO NOT OFFER ANY INCREASE IN PERFORMANCE whatsoever. And now that you understand how TFI works, you understand why. They have not changed a thing that would do anything to improve performance. In fact, the poor quality components actually reduce performance due to the inconsistent spark advance! A better coil, increased primary voltage, and longer dwell times (the length of time the coil is charged) are the only ways to increase the output potential of your ignition system. These distributors do none of these things.
    Some of these manufacturers claim that their TFI module has increased dwell times, and therefor produce a hotter spark. This is not possible:
    (1) Every coil has an optimum dwell time at a given system voltage. When they sell you a TFI module, they do not know what coil you are using, and therefor do not know what that dwell time is, unless they sold you a coil too, however….
    (2) Even if they do know what the optimum dwell is, there is not enough time between cylinder events to dwell the coil long enough to reach those dwell times! At least not with a single coil system, which is where multiple coil systems come in. More coils means more available dwell time, and a real increase in performance.
    So what did we learn?
    (1) If you want a better ignition system, buy a Coil On Plug system. Yes, you can use a CD box, but those are as unreliable as the aftermarket distributors. Learn about our C.O.P.
    (2) If you own one of these aftermarket distributors, you probably have a junk hall sensor. Buy a new one from the Ford dealer and install it.
    (3) If you have one of these aftermarket distributors, you likely have a junk shutter wheel. It is very easy to determine if yours is good or not. The proper tooth dimensions are below. Measure your teeth with a dial caliper or micrometer. If the dimensions are wrong, then change it. New ones are available from Pro-M Racing on this page.
    Proper shutter wheel tooth dimensions for a V8 shutter wheel:
    Large teeth — .398 to .400
    Small tooth — .258 to .262
    There should also be even spacing between the teeth, with the exception of the long space following the narrow tooth.
    We should mention here that our Pro-M EFI engine management system employs a strategy to deal with the bad shutter wheels. Our strategy averages out the pulses generated by the shutter passing through the hall sensor. This provides a consistent spark at all cylinders. The Pro-M EFI system will also set a diagnostic code if the shutter or hall sensor is so bad that the ECU cannot make sense of the signal. Just one more feature of the advanced diagnostics in our ECU. Learn More
  3. LC2 Series Digital WideBand Controller

    Innovate Motorsports LC2 Digital Wideband Controller with O2 Sensor

    $194.99

    Innovate Motorsports LC2: These wide band O2 sensors operate over a much broader range of Air/Fuel ratio than the conventional O2 sensors, which allows for more precise fuel control over a broader range of operating conditions. They are worth the money. You'll find that the Pro-M EFI harness has a connector dedicated to wiring for the wide bands. And if you purchase the wide bands as part of your EFI package, you'll get a harness pigtail that plugs into the harness, and makes wiring the wide bands a snap.
    This is a single O2 kit. Learn More
  4. MTX Series Digital Air/Fuel Ratio Gauge Kit

    Innovate Motorsports MTX-L Plus Digital Air/Fuel Ratio Gauge Kit (ALL-IN-ONE) (8 Ft. Sensor Cable)

    $225.99

    Innovate Motorsports MTX-L Plus: These wide band O2 sensors operate over a much broader range of Air/Fuel ratio than the conventional O2 sensors, which allows for more precise fuel control over a broader range of operating conditions. They are worth the money. You'll find that the Pro-M EFI harness has a connector dedicated to wiring for the wide bands. And if you purchase the wide bands as part of your EFI package, you'll get a harness pigtail that plugs into the harness, and makes wiring the wide bands a snap.
    This is a single O2 kit. Learn More
  5. Pro-M 117 Conical Filter

    Pro-M 117MM Filter

    $74.99

    This is the high flow conical air filter for the Pro-M 117mm Mass Air Flow Meter. Learn More
  6. Pro-M 117 with conical filter

    Pro-M 117

    $419.99

    New Design Coming Mid May!

    The Pro-M 117mm High Flow Mass Air Meter is the "LARGEST" mass air meter made. With a bell mouth inlet and 5 inch outlet, nothing comes close! Forged out of high quality cast aluminum and shipped with it's lifetime filter. Used by Stuska Dynamometers around the country! Watch a video of the Pro-M 117 Learn More
  7. 6pin 4 wire Pigtail

    6 Pin 4 Wire Pigtail

    $24.99

    Pro-M 6 Pin to 4 Wire Connector
    Wiring harness repair pigtail. Learn More
  8. 6 Pin 6 Wire Pigtail

    6 Pin 6 Wire Pigtail

    $24.99

    Pro-M 6 Pin to 6 Wire Connector

    Wiring harness repair pigtail. Learn More
  9. Pro-M WAVE Frequency Sensor Wiring Pigtail

    Pro-M WAVE Frequency Sensor Wiring Pigtail

    $39.95

    Pro-M WAVE Frequency Sensor Wiring Pigtail (4 Pin) Learn More
  10. Pro-M Slot-In Sensor Wiring Pigtail 6 wire

    Pro-M Slot-In Sensor Wiring Pigtail

    $39.95

    This is the harness connector for the Pro-M Slot-In Sensor.

    Wire leads are 3 feet long to give the installer some flexibility in the location of the sensor. Learn More
  11. Pro-M Drop-In Sensor

    Pro-M Drop-In Sensor

    $174.95

    Use the Pro-M Drop-In Sensor with our Drop-In Weld-On Flange to create your own custom mass air meter assembly. The perfect option for customers with custom tubes or forced induction! Learn More Learn More
  12. Pro-M Slot Style Mass Air Sensor

    Pro-M Slot Style Mass Air Sensor

    $199.99

    Pro-M "Slot Style" Mass Air Sensor
    The Pro-M "Slot Style" mass air sensor used in all 05 and up voltage based Ford products. It can also be used in any voltage based vehicle and comes with a 30 point transfer function sheet at NO additional charge! Learn More
  13. 4 to 6 Pin Adapter

    4 to 6 Pin Adapter

    This adapter allows use of more modern mass air meters in earlier vehicles. One end connects to later model meters with 4 and 6 pin rectangular connectors. The other end connects to the 4 pin oval harness connector found in earlier Ford vehicles. This adapter is far superior, cleaner looking, and much more reliable than the goofy pigtail adapters offered by our competition. Learn More
  14. GM 85mm 5 Pin Meter

    GM 85mm 5 Pin Meter

    $334.99

    Pro-M Racing, LLC. mass air meters for GM applications appear to be exactly the same product that you have seen advertised by other manufactures. All aftermarket manufactures (Pro-M Racing, LLC. included) start with the same production GM meter. The entire housing is machined, allowing it to flow more air than the stock meter. This is where the similarities end. Modifying the meter housing allows the meter to flow more air, but in the process, the calibration of the meter is thrown way off.

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  15. GM 75mm 3 Pin Meter

    GM 75mm 3 Pin Meter

    $334.99

    Pro-M Racing, LLC. mass air meters for GM applications appear to be exactly the same product that you see advertised elsewhere. All aftermarket manufactures (Pro-M Racing, LLC. included) start with the same production GM meter. The ends are removed from the production meters, then the center section (the part that contains the electronics) is machined to allow more air flow, then new larger diameter ends are installed. The result is an assembly that flows more air, but in the process, the calibration of the meter is thrown way off. Other manufacturers simply ship them with the calibration off. Every Pro-M Racing, LLC. meter is calibrated to match the original meter's calibration. These meters can simply be installed in place of your original meter, with no modification to the computer, allowing instant results, with none of the hassles associated with aftermarket computer tuning. This is a feature you will only find in a Pro-M Racing, LLC. meter. Every Pro-M mass air meter plugs into your vehicle's harness connector without modification

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  16. 75mm Flanged Bullet

    75mm Flanged Bullet

    $209.99

    The Pro-M 75mm Flanged Bullet is a direct replacement for the 94-95 Mustang (Forth Generation / Fox-4 / SN-95), 94-96 5.0 and 5.8 trucks, and any other Ford vehicle originally equipped with a 70mm flanged housing. Learn More Learn More
  17. Pro-M Racing 75mm Bullet

    75MM Plastic Bullet (un-flanged)

    $209.99

    The Pro-M 75mm unflanged Bullet is a direct replacement for the 88-93 5.0 Mustang (Fox Body / Third Generation), as well as any other Ford vehicle originally equipped with a 55 or 70mm unflanged Mass Air Meter housing. Learn More

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