Adding a killer aftermarket stereo system to your new Mustang is way cool, but can take a toll on the stock factory alternator. Pulling to much power can drain your battery leaving you stuck looking for a jump start. So be sure to upgrade to a larger amp alternator to handle all your power needs. Other ignition upgrades you should consider to get more power out of your Pony include Coil Packs and Spark Plugs.
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