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    1. #1
      Join Date
      Apr 2005
      Location
      IN/MI border
      Posts
      1,920
      Country Flag: United States

      Magnaflow mufflers, what size?

      Looking on magnaflow's site there are a few different sizes available for 3" in/3" out mufflers. 4x9, 5x11, 5x8.... what size are you guys running and why? Trying to figure out which to buy.






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