pro & cons to test pipe & exhaurst system | FerrariChat
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pro & cons to test pipe & exhaurst system

Discussion in 'Technical Q&A' started by solid car, Aug 26, 2006.

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  1. solid car

    solid car Karting

    Apr 29, 2005
    175
    Toronto, Ontario
    Full Name:
    Domenic
    #1 solid car, Aug 26, 2006
    I am considering doing the exhaust & test pipe on my 328 but I am unsure on the consequences if any? Some guys say you loss torque, it runs hotter, How is the set up in Itay? Do they run tests pipes with the exhaust? Any replies would be very helpful in my discission.

    Thank You

    Domenic
     
  2. JV's89

    JV's89 F1 Veteran
    Owner Rossa Subscribed

    Jul 18, 2006
    7,359
    Pittsburgh, PA
    Full Name:
    John
    #2 JV's89, Aug 26, 2006
    I have a stebro test pipe with the stock silencer. I'm thinking about installing a stebro silencer this winter.I have noticed an increase in performance with the test pipe, but I am not expecting much more from the silencer. I've been told to expect around 10%. I have not been told to expect less torqe or over heating issues.
     
  3. Vivid

    Vivid Rookie

    Aug 23, 2006
    10
    #3 Vivid, Aug 28, 2006
    Pros-

    More exhaust flow = more power.

    Cons-

    Emissions

    o2 sensor might trip the ecu to throw a code.

    10% hp gain is around 30 hp. I highly doubt that. Especially on a N/A engine. I would say maybe 5 hp.
     
  4. GrigioGuy

    GrigioGuy Splenda Daddy
    Lifetime Rossa Owner

    Nov 26, 2001
    33,378
    E ' ' '/ F
    Full Name:
    Enzo Gorlomi
    #4 GrigioGuy, Aug 28, 2006
    Last edited by a moderator: Sep 7, 2017
    I've run dyno runs with both the stock cat and a test pipe. No significant difference. The car will be louder, and much more odorous. It won't pass emissions in certain territories. There are no codes on the 328, as there is no OBD system. The 02 sensor is before the cat on US 328s.


    On the positive side, you'll be at a lower risk for fire if you have a single-bank ignition failure. To me, this alone is worth the conversion. I put the cat back on for the yearly emission testing. See pic below -- not my car, thank goodness!
    Image Unavailable, Please Login
     
  5. Vivid

    Vivid Rookie

    Aug 23, 2006
    10
    #5 Vivid, Aug 28, 2006
    damn, I knew that too!

    thanks for the correction. :)


    Oh and that looks like it will buff right out.. lol
     

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