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HorsePower S16 Ep6: Bang for the Buck Performance ModsToday, HorsePower brings back a smallblock Chevy "Mule Motor" to test several popular bolt-on components to test each for power gains. Everything from different style headers to nitrous oxide. Since the "dyno don't lie", results will be valuable. Plus, a test of a performance tuner on Ford's new Eco Boost engine.PowerNation

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