Does anyone know about Cat performance simulators | FerrariChat
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Does anyone know about Cat performance simulators

Discussion in 'Ferrari Discussion (not model specific)' started by Smyrna355Spider, Apr 11, 2008.

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  1. Smyrna355Spider

    Smyrna355Spider F1 Rookie
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    #1 Smyrna355Spider, Apr 11, 2008
    My mechanic says that high flow catalytic converters will usually cause o2 sensors to give warning lights on my 355. He suggested I look into these cat simulators which are supposed to trick the computer into believeing the original factory cats are installed and working properly. Can anyone tell me if you have used this type product? Where to get them and if they work well? Thanks in Advance Scott
     
  2. No Doubt

    No Doubt Seven Time F1 World Champ

    May 21, 2005
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    #2 No Doubt, Apr 11, 2008
    If you have a 1996 or later OBD2 Ferrari, then you have 4 O2 sensors...two in front of your cats to measure your fuel/air mixture (useful for tuning your motor on the fly) and two behind your cats to measure how well your cats cleaned up your exhaust.

    If you replace factory cats with hollow tubes or inferior cats, then your rear O2 sensors are going to signal a problem to your engine computer.

    Some people might replace those rear O2 sensors with simulators (which simply send a signal that shows a slightly varying "good signal" to your engine computer). Others might invest in better cats...or simply ignore the Check Engine Light.

    A few very advanced people might even reprogram their engine computer to accept (or ignore) the input signals from the rear O2 sensors without throwing an error code.
     
  3. Smyrna355Spider

    Smyrna355Spider F1 Rookie
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    #3 Smyrna355Spider, Apr 11, 2008
    Can you tell me which are the best replacement cats? I'm not trying to skimp on cats just don't want to buy something that turns out to be a headache. I just bought a Tubi exhaust and Fabspeed Headers. Just need the last piece new cats to do the install and need help!!!!!!!!!!!!!
    Oh sorry I forgot I have a 97 Spider!!!!!!!!
     
  4. PCH

    PCH F1 Rookie

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    #4 PCH, Apr 11, 2008
    Here yea go...http://hyper-flow.com/
     
  5. Smyrna355Spider

    Smyrna355Spider F1 Rookie
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    #5 Smyrna355Spider, Apr 12, 2008
    Thanks Drew for the link however I am still looking into this simulator I originally asked about because the Hyper-Flow aftermarket cat is the specific one my mechanic said has caused other 355 owners to experience o2 warning lights on the dash. He feels this may be the only fix other than staying with OEM cats. I just hope someone out there has tried them or atleast seen an ad for them!!!!! Thanks again!!!!!!!!!!!!!
     
  6. cavlino

    cavlino Formula 3

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    #6 cavlino, Apr 12, 2008
    I would ask Fabspeed if they have tested their cats on a post 1996 F355, you already have their headers so its makes sense to me go get their high-flow cats. Keep us posted :)
     
  7. Smyrna355Spider

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    #7 Smyrna355Spider, Apr 13, 2008
    Help I'm still looking for anyone who might have knowledge about catalytic performance simulators please post if you can tell me about any company that carries them!!!!!!!!!!!
     
  8. Smyrna355Spider

    Smyrna355Spider F1 Rookie
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    #8 Smyrna355Spider, Apr 14, 2008
    Has no one out there used or tried an o2 simulator???????
     
  9. 360ModenaMan

    360ModenaMan Rookie

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    #9 360ModenaMan, Apr 15, 2008
    You guys got me wondering if I may need them as well on my 360. I'm about to put on a set of High-flow cats from Kinetix Racing. I wondering if I too will get a check engine light. Does anyone know if they have seen a check engine light on a 360 with any of the other cat manufactures like fab-speed or hyper-flow? Do the simulators replace the O2 sensors? Please let me know if anyone has had any experiences.
     

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