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Thread: Exhaust dimensions

  1. #1
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    Default Exhaust dimensions

    So i might get a dynomax muffler for the 1999. I saw one thing though. It has 2.5 inch inlet and exit pipes. Now stepping up from 2.25 to 2.5 inch into the muffler is no problem. Is there a problem stepping back down 2.5 to 2.25 to the stock piping after the muffler?

  2. #2
    denverd1's Avatar
    denverd1 is offline Level: Uber Jeep Cherokee Trailer Queen
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    Default Re: Exhaust dimensions

    Wouldn't cause a problem. Will probably give you a nice sound

    sent from my Samsoon S5 from the bottom of a mud hole
    Wheelin' East Texas in a RED XJ

    RED 98 XJ with 4.5" lift, ZJ steering, front and rear locked on 33's
    cowl intake, Cobra CB, SYE, bumpers, 10K winch, lights
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  3. #3
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    Default Re: Exhaust dimensions

    What effect would that have on the sound? Makes sense that it would have some sort of effect but just curious what the step down would do...

  4. #4
    denverd1's Avatar
    denverd1 is offline Level: Uber Jeep Cherokee Trailer Queen
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    Default Re: Exhaust dimensions

    Might echo/rumble a little better since it steps up. you should really run 2.5" after the muffler to open things up and help it breathe better. if you wanted to stay at 2.25 after the muffler, I don't think it would be any more restrictive since the header is 2.25" as well.
    Wheelin' East Texas in a RED XJ

    RED 98 XJ with 4.5" lift, ZJ steering, front and rear locked on 33's
    cowl intake, Cobra CB, SYE, bumpers, 10K winch, lights
    ,___________
    //___l__,\____\,00_
    l_--- \___l---[]lllllll[]|
    (o)_)--(o)_)--(o)_)

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