Straight pipe vs performance exhaust?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by geauxjoe, Feb 19, 2014.

  1. geauxjoe

    geauxjoe Bobtail Member

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    Dec 26, 2010
    New London,North Carolina
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    Yes I have a 05 International 9400I with a C13 accert with twin stack exhaust and was wanting to replace with a new system. My question is which would be the best for a deep exhaust tone and performance , straight pipe my existing system or performance exhaust from Pittsburg power or similar performance Donaldson system?
     
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  3. Luwi67

    Luwi67 Heavy Load Member

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    Oct 24, 2012
    Long island
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    I bought the Pittsburgh Power mufflers a couple of years ago, they're not loud but definitely deeper than stock Donaldsons. They are reasonably priced too, if I remember correctly they were less money than stock replacements.

    I would not go with strait pipes as you will be turned around at some states port of entry, namely Colorado.
     
  4. little cat 500

    little cat 500 Road Train Member

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    Abbottstown PA
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    straits get old buy the end of a long day go with the muffler
     
  5. hatlesstrukr

    hatlesstrukr Light Load Member

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    Jan 30, 2010
    El Paso, TX
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    If you want performance/fuel economy, go with a single stack behind the cab with a PP free flow muffler. Might be illegal in some states if you use engine brakes with straight pipes in small towns.
     
  6. GP1500SC

    GP1500SC Light Load Member

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    Sep 10, 2011
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    The larger the pipes the deeper the tone, I loved the tone of the 379 with a C15 I drove that had a single 36 inch straight through open chamber muffler under neath with 8 inch straights
     
  7. geauxjoe

    geauxjoe Bobtail Member

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    Dec 26, 2010
    New London,North Carolina
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    Thanks for all the recommendations
     
  8. SmokinCAT

    SmokinCAT Road Train Member

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    Oct 20, 2010
    Hillsboro, OH./ Adrian, MI
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    I would look into the walker mega flow or the donaldson equivalent which is what I believe PP sells marked up on price.
     
  9. Rodeoman7

    Rodeoman7 Light Load Member

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    May 27, 2008
    Middle of Nowhere, CO
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    I run 6 inch straights on my 379 with a c15 hope you don't like having windows rolled down
     
    Caterpillar Cowboy Thanks this.
  10. Dice1

    Dice1 Road Train Member

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    Jul 1, 2011
    Bessemer City, NC
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  11. sewmun

    sewmun Bobtail Member

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    Apr 11, 2010
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