tubi exhaust for 328 | FerrariChat
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tubi exhaust for 328

Discussion in 'Technical Q&A' started by solid car, May 3, 2005.

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  1. solid car

    solid car Karting

    Apr 29, 2005
    175
    Toronto, Ontario
    Full Name:
    Domenic
    #1 solid car, May 3, 2005
    If I install this exhaust on a 328 will it increase my horse power or my torque? Do you think it is worth doing to increase performance?
     
  2. Mike C

    Mike C F1 Veteran
    Lifetime Rossa Owner

    Aug 3, 2002
    6,081
    Southeast USA
    Full Name:
    Mike Charness
    #2 Mike C, May 3, 2005
    Yes, opening up the exhaust gives a slight increase in horsepower, but it's mostly a sound improvement. However, if you get rid of the stock catalytic converter at the same time you change to an more open exhaust such as a Tubi or Stebro (Stebro is about half the price of the Tubi, and on USA model 308/328 cars it doesn't show except for the tips anyway, and www.Stebro.net also gives a 10% discount to FCA members), you'll REALLY notice the difference in how fast your car revs up.

    I have a used Stebro Euro Resonator (test/track pipe) for sale. If you're interested, PM me.

    The "best" high flow catalytic converter (if you choose not to use a test pipe) seems to be the metal matrix based ones from Random Technology. There are Ferrari-specific versions branded as "Hyper-Flow", and available from www.RicambiAmerica.com
     
  3. tamf328

    tamf328 Formula Junior

    Mar 9, 2005
    477
    #3 tamf328, May 3, 2005
    funny you should ask. i was just at VIR and did a test.
    i don't think you'd notice a difference.
    i have a 328 with a tubi on it. can't tell the difference from riding in mine and a 328 with a stock muffler on it.
    Oh, one difference, the tubi is louder.... if your into that.
     
  4. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
    18,044
    USA
    #4 f355spider, May 3, 2005
    I installed on myself, on my 328GTS. Looked and sounded great...but I noticed little difference in performance.

    Dave
     
  5. Roryferrari

    Roryferrari Formula Junior

    Apr 28, 2004
    259
    San Jose
    Full Name:
    Dave Bell
    #5 Roryferrari, May 3, 2005
    I have a test pipe and after market exhaust as well. My car runs very strong. The dyno shows 220 hp at wheels 256-260 converted at motor. A/F ratio a little lean (14), should be 13.0-13.2. How much HP would this give me if corrected? Don't know for sure. Seems to rev free, and sounds great!
     

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