dual exhaust

Discussion in 'GM Powertrain' started by wwardd, Dec 13, 2009.

  1. wwardd

    wwardd New Member

    Hey everyone i was wondering how much diff in performance is there between true duals an a cat back system with dual outlets. thanks

    Oh i should say i have a 04 w/5.3l 2wd
     
    Last edited: Dec 13, 2009

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