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    1. #1
      Join Date
      Mar 2007
      Posts
      2

      What size? 2.5 inch or 3 inch

      Vehicle is 67 firebird, 455 motor, Doug's headers, how does the 3 inch exhaust fit into the car --specifically, exit in the stock location. I prefer to use 3 inch rather than 2.5 inch.
      Thanks for the help






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