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348 Catless Tubi Pipes

Discussion in '348/355' started by Elliott, Nov 30, 2007.

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  1. Elliott

    Elliott Karting

    Jun 28, 2007
    141
    Bay Area
    Full Name:
    Elliott
    #1 Elliott, Nov 30, 2007
    I recently purchased a set Tubi of catless "test pipes" to pair with the rest of my Tubi exhaust from Plugzit (thanks Plugzit they are gorgeous!), but I am having some hesitation about unleashing the beast and installing them on my car. I have been told from a very well informed friend of mine that it may effect the engine timing and cause fatal engine problems due to reduced back pressure in the exhaust. Is there a possibility that the reduced back pressure in the exhaust would cause the engine to run lean and thus raise engine temperature, potentially burning a valve?
    Have any of you done this mod?
    Do I need to do any modifications prior to installing these?
    Any advice with regard to the actual installation would also be greatly appreciated.
     
  2. GQ IMAGE

    GQ IMAGE Formula Junior

    Feb 10, 2005
    322
    PA
    Full Name:
    GQ IMAGE
    #2 GQ IMAGE, Nov 30, 2007
    Now you can hear it 1st hand. Been running with Tubi & Test Pipes for 3 years. Car runs WAY cooler than stock set up. Car runs much better and the sound is to die for. Not one problem at all. My shop installed everything and it went super smooth with no headaches.
     
  3. vvassallo

    vvassallo F1 Veteran

    Aug 4, 2006
    8,329
    Palos Verdes
    Full Name:
    Vince V
    #3 vvassallo, Nov 30, 2007
    Who told you that? You have got to be kidding? Myth, I say. Bolt them on and go. Not sure what you are gonna do with those extra O2 sensors... :)
     
  4. elgin328

    elgin328 Formula 3

    Apr 11, 2004
    1,034
    near Atlanta
    Full Name:
    Mark
    #4 elgin328, Nov 30, 2007
    Tubi test pipes here with NO problems
     
  5. Bee Jay

    Bee Jay Formula Junior

    Apr 14, 2004
    751
    Lompoc, Ca.
    Full Name:
    Bernard E. Jones
    #5 Bee Jay, Nov 30, 2007
    +1,000. To die for. But I'm running gutted stock cats. Looks stock, sounds great.
    Bee Jay
     
  6. ProCoach

    ProCoach F1 Veteran
    Owner

    Sep 15, 2004
    5,465
    VIR Raceway
    Full Name:
    Peter Krause
    #6 ProCoach, Nov 30, 2007
    Elliott, want to sell them? <grin>

    -Peter
     
  7. Elliott

    Elliott Karting

    Jun 28, 2007
    141
    Bay Area
    Full Name:
    Elliott
    #7 Elliott, Dec 1, 2007
    Sorry Peter, but the pipes are going on TODAY!!!
    I will post some before and after footage and maybe an installation guide we will just have to wait and see
    --hope I don't break anything
     
  8. Elliott

    Elliott Karting

    Jun 28, 2007
    141
    Bay Area
    Full Name:
    Elliott
    #8 Elliott, Dec 1, 2007
    By the way Peter, my neighbor drives a California registered Le Mans Blue Lola T70 coupe... I will send some pictures one of these days
     
  9. alexr931

    alexr931 Karting

    Oct 25, 2007
    82
    Lawrence, Kansas
    Full Name:
    Alex R.
    #9 alexr931, Dec 1, 2007
    anyone have a soundclip or video of said exhaust set up? I would love to take a listen. :)
     
  10. angelis

    angelis F1 Veteran
    Owner

    Jun 18, 2004
    6,400
    London, England
    Full Name:
    Sy
    #10 angelis, Dec 2, 2007
    I ran mine with tubi/decat for nearly 2 years without problems.

    I have heard some pwopel say that removing the cats can cause loss of torque on some models. However, I believe some early 348's did not have cats as standard and were only put in due to legislation issues.

    I've also read that early de-catted 348's had 300bhp, whilst later cat versions had 295bhp (excluding spider/GTS/GTB etc)
     
  11. Jas

    Jas Formula 3

    Mar 2, 2005
    1,060
    Kent, UK
    Full Name:
    Jas
    #11 Jas, Dec 11, 2007
    Tubi + decat here too. Wouldn't have the 348 Spider any other way!!!
     

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