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512TR test pipe question

Discussion in 'Technical Q&A' started by dontilgon, Apr 27, 2012.

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  1. dontilgon

    dontilgon Formula Junior

    May 30, 2011
    336
    NY/PA
    Full Name:
    Joseph
    #1 dontilgon, Apr 27, 2012
    Last edited by a moderator: Sep 7, 2017
    Could someone tell me the diffrence between the two testpipes offered. I physically viewed both and they are both straight through. The only diffrence is that the one with the bulge has a cylindrical perforated tube within it. Niether contain restriction within them(Straight through) Does the one with the bulge serve any necessary purpose?
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  2. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,932
    30°30'40" N 97°35'41" W (Texas)
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    Steve Magnusson
    #2 Steve Magnusson, Apr 27, 2012
    The ones with the "bulge" (and thermocouple fitting) can (visually) fool an emission inspector ;) (i.e., they simulate a working cat's construction; whereas, the truly straight pipes don't)
     
  3. dontilgon

    dontilgon Formula Junior

    May 30, 2011
    336
    NY/PA
    Full Name:
    Joseph
    #3 dontilgon, Apr 27, 2012
    That was my second thought. My first was, it counter acted any drone or resonation.
     

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