2005 Mustang GT American Racing Headers Install - Waiting To Exhale
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Stock Exhaust VS. American Headers And Magnaflow ExhaustA Review of the graph illustrates the exhaust upgrade dramatically improved the power output of the supercharged 4.6L motor. Run with the stock exhaust manifolds, stock after-cat (with aftermarket mufflers) and no cats, the supercharged motor produced 779 hp and 691 lb-ft of torque. After the installation of the American Racing headers, MagnaFlow 3-inch after-cat exhaust, and x pipe system, the peak power numbers jumped to 802 hp and 714 lb-ft of torque. What was really impressive were the tremendous gains experienced throughout the rev range. View Related Article
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