Pro-M 95mm Cold Air Calibration Aluminum Mass Air Meter for 2003-2004 Cobra Mustangs.Having a properly calibrated mass air meter is the most important factor to consider when choosing an aftermarket MAF meter. The meter should be calibrated to matchthe flow rating of the fuel injectors, in conjunction with the PCM (engine computer) being used for the given application. A properly calibrated MAF meter will result in a meter that generates an accurate voltage signal vs. the air mass entering the engie throughout the entire RPM range of the engine. If the meter you are using is not properly calibrated, the meter may "peg" (reach maximum voltage output) before the engine reaches maximum airflow, which will result in an inaccurate air/fuel ratio, causig a loss in horsepower, or even potential engine damage. In contrast, it may fall below the PCM's expected minimum voltage input at idle speed, which will result in the PCM entering a "failure mode", which will cause a very rich condition at idle. A proprly calibrated MAF meter ensures that the PCM receives a correct signal throughout the engine's entire operating range, resulting in a proper air/fuel mixture, maximum horsepower, excellent drivability, and maximum fuel economy.
*Injectors sold seperately.
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