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Old 12-10-2007, 03:12 PM
maxwedge maxwedge is offline
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Re: 2004 Impala, Lack of Power

Welcome to AF, if the car ran ok with the cat partially out of the picture then there must be some exhaust restriction, have the cat back pressure tested, they are covered for 8/80 or at least 7/70 depending on the state.
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