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Free Flow Mufflers

Discussion in 'Trucks [ Eighteen Wheelers ]' started by SPIKE 64, Apr 2, 2008.

Page 1 of 4
  1. Apr 2, 2008 #1
    SPIKE 64

    SPIKE 64 Light Load Member

    150
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    Feb 26, 2008
    San Antonio tx.
    0
    Changed out my heavy restricted factory stock muffler/converter on my 2004 freightliner classic W/C15 CAT acert with a pair of dynaflex aftermarket free flow mufflers , It improved my fuel mileage by 1/4 mile per gallon and overall truck perfomance and engine sound.
     
    SPIKE 64, Apr 2, 2008
    SPIKE 64, Apr 2, 2008
    #1
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  3. Apr 2, 2008 #2
    bullhaulerswife

    bullhaulerswife Forum Leader/Admin Staff Member Administrator

    28,509
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    Jul 23, 2007
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    Did it reduce cab noise? Hubby is considering doing this. Where did you run them, behind the bunk or beside the doors?
     
    bullhaulerswife, Apr 2, 2008
    bullhaulerswife, Apr 2, 2008
    #2
  4. Apr 2, 2008 #3
    SPIKE 64

    SPIKE 64 Light Load Member

    150
    27
    Feb 26, 2008
    San Antonio tx.
    0
    Truck is still quiet , mufflers are by the doors ........
     
    SPIKE 64, Apr 2, 2008
    SPIKE 64, Apr 2, 2008
    #3
  5. Apr 2, 2008 #4
    bullhaulerswife

    bullhaulerswife Forum Leader/Admin Staff Member Administrator

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    Midwest
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    Good to know. I'll be passing this along to hubby! Thanks! :yes2557:
     
    bullhaulerswife, Apr 2, 2008
    bullhaulerswife, Apr 2, 2008
    #4
  7. Apr 2, 2008 #5
    550hpW900L

    550hpW900L Road Train Member

    1,874
    1,090
    Jan 29, 2008
    norcal
    0
    I dumped my twin reverse flow mufflers with cats and saw a .5-.6mpg increase...... Straight pipes FTW!!!!
     
    550hpW900L, Apr 2, 2008
    550hpW900L, Apr 2, 2008
    #5
  8. Apr 3, 2008 #6
    blitztex

    blitztex Bobtail Member

    18
    1
    Jun 3, 2007
    0

    Ball park figure how much did the dynaflex mufflers cost you? I'm looking to buy some for my 379 pete.
     
    blitztex, Apr 3, 2008
    blitztex, Apr 3, 2008
    #6
  9. Apr 3, 2008 #7
    Pete_379X

    Pete_379X Super Chrome

    1,006
    124
    Jul 4, 2007
    Arkansas
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    Hahahaha FTW!!!!!! You're on teh internet toooo much. :biggrin_2559:
     
    Pete_379X, Apr 3, 2008
    Pete_379X, Apr 3, 2008
    #7
  10. Apr 3, 2008 #8
    1989 Pete

    1989 Pete "Pine Tree Eater"

    586
    48
    Mar 14, 2008
    Logging Country South Georgia
    0

    Yea I put straights on my 89 Pete the 400 Cummins sounds like godzilla!!!!!:biggrin_2551:
     
    1989 Pete, Apr 3, 2008
    1989 Pete, Apr 3, 2008
    #8
  11. Apr 4, 2008 #9
    SPIKE 64

    SPIKE 64 Light Load Member

    150
    27
    Feb 26, 2008
    San Antonio tx.
    0
    ...........................
     
    SPIKE 64, Apr 4, 2008
    SPIKE 64, Apr 4, 2008
    #9
  12. Apr 4, 2008 #10
    MedicineMan

    MedicineMan Road Train Member

    5,799
    6,440
    Jan 13, 2007
    Woodville, TX
    0
    ya babie big cam on straight pips. How do you like your holset sir??? Looud or ear spliting! lol

    My bg cam right now has a single stack with a muffler and you can hear my holset coming long before you see or hear anything else
     
    MedicineMan, Apr 4, 2008
    MedicineMan, Apr 4, 2008
    #10
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