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Which one?

By SnakeEyeSS
June 1, 2002 in 2000-2014 Silverado & Sierra HD

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SnakeEyeSS

Posted June 1, 2002

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Posted June 1, 2002

Do you guys know which mufflers flow best( as in HP gain) between DynoMax Ultra Flow and Magnaflow? I've heard both are good, but which is better?

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