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The Overkill tune comes with free retunes for as long as you own your car. Overkill has the 80mm Throttlebody/Ported Intake Manifold combonation for purchase currently. The Overkill tune with the combo 80/ported intake on E-85 has dynoed at 310 rear wheel horsepower. Overkill is offering the ported manifold as a stand-alone mod also. Go on, GET OVERKILLED!!!!
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