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308 gt4 stock muffler question

Discussion in '308/328' started by plugzit, Feb 19, 2020.

  1. plugzit

    plugzit F1 Veteran
    Rossa Subscribed

    Dec 1, 2004
    7,348
    Redondo Beach, CA
    Full Name:
    Bruce Bogart
    #1 plugzit, Feb 19, 2020
    I have a stock muffler for my project. I noticed the short inlet pipe is loose. Looking inside with the boroscope, I see a clean break as if it's a slipjoint as opposed to a break. I want to confirm before I open it up for welding. Anybody?
     

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  2. miked

    miked Formula Junior

    Feb 7, 2001
    667
    Cincinnati, Ohio
    Full Name:
    Mike Dawson
    #2 miked, Feb 21, 2020
    It would help to have more info, there were several mufflers used on GT4s. Year?, US spec?, thermo-reactor or conventional?
    That being said I can't imagine any muffler with an internal slip joint.
     
    dave80gtsi likes this.
  3. absostone

    absostone F1 Veteran
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    Jul 28, 2008
    5,760
    #3 absostone, Feb 21, 2020
    wow I have my original one up in the garage attic , I never noticed that. I cant picture where it would be a slip joint,, in the era of emission controls.
     
  4. plugzit

    plugzit F1 Veteran
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    Dec 1, 2004
    7,348
    Redondo Beach, CA
    Full Name:
    Bruce Bogart
    #4 plugzit, Feb 22, 2020
    It's a '75 with thermoreactor. Weighs about 500lbs. Probably a busted weld but just looks clean because I'm looking from the inside. I think I was just dreaming. Thanks for the kind replies.
     
    absostone likes this.

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