308QV exhuast bypass tube - Need product feedback | FerrariChat

308QV exhuast bypass tube - Need product feedback

Discussion in '308/328' started by BLACK HORSE, Feb 26, 2021.

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  1. BLACK HORSE

    BLACK HORSE Formula 3
    Silver Subscribed

    Feb 11, 2004
    1,937
    California - Bay Area
    Full Name:
    Rob
    Hey guys.. I have a 1985 308QV car... and I'm interested in this exhaust bypass tube I found on email...and before I pull the trigger on buying one, I would like some product feedback, if you purchased one pls?

    ebay seller: topspeed-pro1 (I have NO affiliation with them)

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    Questions

    1) Does the mounting flanges align with the original 308QV exhaust pipes?
    2) How's the overall quality? Materials used, finish, mounting for both a CO sensor?
    3) How's construction? Welds, etc?
    4) Noticed this doesn't use "donut rings" but steel gaskets!!!

    for the price it seems like a great deal but I been down this road before.. I think we all have!!!!

    Rob
     
  2. miketuason

    miketuason F1 World Champ
    Owner Silver Subscribed

    Feb 24, 2006
    15,517
    Cerritos, CA.
    Full Name:
    Mike
    Rob, from what I’ve hear, they are a little quiet than a regular test pipe as they are perforated inside but definitely better than having a cat.
     
  3. greatscott73

    greatscott73 Formula Junior

    Sep 1, 2017
    409
    Eastern Tennessee
    Full Name:
    Howard Scott
    I have the same one on my 3.2 Mondial. Quality is fine. Bungs for 02 sensor and thermocouple. Those steel gaskets don't work. I bought a pair of the donut gaskets and it installs as it should. Not much difference in sound, but my engine runs 10-15 degrees cooler without the cat.
     
  4. BLACK HORSE

    BLACK HORSE Formula 3
    Silver Subscribed

    Feb 11, 2004
    1,937
    California - Bay Area
    Full Name:
    Rob
    Thanks Scott
     
  5. BLACK HORSE

    BLACK HORSE Formula 3
    Silver Subscribed

    Feb 11, 2004
    1,937
    California - Bay Area
    Full Name:
    Rob
    I made a typo... not email but ebay I found this tube!
     
  6. greatscott73

    greatscott73 Formula Junior

    Sep 1, 2017
    409
    Eastern Tennessee
    Full Name:
    Howard Scott
  7. miketuason

    miketuason F1 World Champ
    Owner Silver Subscribed

    Feb 24, 2006
    15,517
    Cerritos, CA.
    Full Name:
    Mike
  8. dinoart

    dinoart Formula Junior
    Silver Subscribed

    Oct 30, 2004
    755
    Westminster CA
    Full Name:
    David
    Rob
    I put the same bypass on my 85 QV with Tubi exhaust. Bought on Ebay about 4 months ago. I posted this before but here a short video clip of what it sounds like.

    https://gopro.com/v/zPWPOGB86Qa88
     
    BLACK HORSE likes this.
  9. tazz99

    tazz99 F1 Rookie
    Rossa Subscribed

    Sep 16, 2007
    4,159
    Kennesaw, GA
    Full Name:
    Seth
    Any issues with funky smells (from the pipe not any personal biological issues)?
     
  10. greatscott73

    greatscott73 Formula Junior

    Sep 1, 2017
    409
    Eastern Tennessee
    Full Name:
    Howard Scott
    Not from mine. If anything, its a bit cooler back there without the cat.
     

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