I think i've posted this before, but its a good preview of whats to come for the GT500.
2013 Ford Mustang Shelby GT500 Gets 600 Horsepower? News ? Car and Driver
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2011 Mustang 5.0 | 3.55's | Lethal Performance off road H-Pipe | Magnaflow Muffler Delete | JLT CAI/Bama tuned 417whp/ 404 ft/lbs
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