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Old 07-07-2013, 07:03 PM   #3
SpartaPerformance
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Join Date: Apr 2010
Vehicle: 2007 Ford Mustang GT
Location: Long Island, New York
Posts: 1,267
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These cars a very reliable, the 2007 and 2009's being some of the best. Spark plug issue sucks but if you're patient and follow procedures there should be no major issues. As for performance gains you should set a final goal of what you want then work your way there, if you just listen to people here and start throwing parts at it it will cost you more in the long run.
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