* Kit Selection: Several reputable manufacturers offer supercharger kits specifically designed for the 2003 Mustang GT. These kits typically include the supercharger itself, mounting brackets, intake piping, a tune, and other necessary components. Choosing the right kit based on your budget and performance goals is crucial.
* Professional Installation: While some mechanically inclined individuals might attempt a DIY installation, it's strongly advised to have a professional shop install the supercharger. Improper installation can lead to damage to the engine, transmission, or other components. The tuning aspect is especially important and should be handled by someone experienced with forced induction.
* Transmission Considerations: The 4R70W automatic transmission in the 2003 Mustang GT is relatively robust, but adding significant horsepower from a supercharger will put extra stress on it. You may need to upgrade the transmission's internals or torque converter to handle the increased power, and this adds significant cost.
* Tuning: A custom tune is absolutely essential after installing a supercharger. The engine's computer needs to be reprogrammed to account for the increased air and fuel demands. A poorly tuned supercharged engine can lead to serious damage.
* Other Upgrades: You might need additional upgrades to support the increased power, such as upgraded fuel injectors, a larger mass airflow sensor, and a better cooling system (radiator, upgraded fan).
* Cost: Expect to spend a significant amount of money on the supercharger kit, installation, tuning, and potentially supporting modifications. The total cost can easily reach several thousand dollars.
In short, it's feasible to supercharge a 2003 Mustang GT automatic, but it's a complex project that requires expertise and a substantial investment. Do your research, find a reputable installer and tuner, and understand the potential costs and risks before proceeding.
