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    Results 1 to 3 of 3
    1. #1
      Join Date
      Oct 2006
      Posts
      59

      Another exhaust size question

      I was always told that 500 hp is the point from where you would go from 2 1/2" to 3" size pipe. It seems like alot of people disagree with that, and say anything over 400 hp go 3". Well my 406 is right on the border line of the 500 hp and i'm in the market for a new exhaust system. The cost of the 2 1/2" and 3" kits are not that far off in price, so which do i choose? I'm leaning towards the 2 1/2" with ultra flo's, this is a street car "toy", with a 4-speed and won't see any track time.
      Jason



    2. #2
      Join Date
      Oct 2005
      Location
      SoCal
      Posts
      489
      with a big ci sb I wouldn't put anything but a 3" on it.

    3. #3
      Join Date
      Mar 2003
      Location
      Kirkland, WA
      Posts
      884
      http://www.popularhotrodding.com/eng...exh/index.html

      It takes a while to read through it, and then a little more to figure out what it means, but I found this helpful.
      James
      -1969 Camaro Sport Coupe
      -1996 Z28
      -2005 Silverado
      Webpage


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