WARNING FOR BUYING CATTED DOWNPIPES!!! - Page 5
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This is a discussion on WARNING FOR BUYING CATTED DOWNPIPES!!! within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; Originally Posted by Sinister BPMs do have a cat and a resonator in the midpipe. So I believe you. As ...

  1. #61
    Registered User spnkdrm's Avatar
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    Quote Originally Posted by Sinister View Post
    BPMs do have a cat and a resonator in the midpipe. So I believe you.

    As for your inspection... if you were tested at 1118, that means it was probably an idle test. So you're lucky. You don't live in a state that does advanced smog testing.
    I made sure to drive around for a while to warm it up to be safe, because on a cold morning it smells like a gas station. After it was done, I talked to the tech and asked specifically what they did out of curiosity. In CT, because it is an AWD car made after 1996 there was no dyno test - just a visual and ODBII - dont rememebr anything about a sniffer.
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  3. #62
    Registered User jd92677's Avatar
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    Quote Originally Posted by spnkdrm View Post
    I made sure to drive around for a while to warm it up to be safe, because on a cold morning it smells like a gas station. After it was done, I talked to the tech and asked specifically what they did out of curiosity. In CT, because it is an AWD car made after 1996 there was no dyno test - just a visual and ODBII - dont rememebr anything about a sniffer.
    They don't do sniffers on OBDII cars much anymore. They only check for codes and check that all monitors have tested and passed. I did wonder how a flashed ECU dealt with monitors, I guess I know now, good deal!
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  4. #63
    Master Baiter EJ257's Avatar
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    Quote Originally Posted by jd92677
    They don't do sniffers on OBDII cars much anymore. They only check for codes and check that all monitors have tested and passed. I did wonder how a flashed ECU dealt with monitors, I guess I know now, good deal!
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  5. #64
    Registered User chronicawd's Avatar
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    if you are really that concerned perrin makes a two section down pipe with two high flow cats but if you really want power go get a catless down pipe for half the money n keep ur old down pipe the swap once a year take s a hour tops just man up n do it

  6. #65
    Registered User Black_N_Blue2002's Avatar
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    Hey guys just a heads up from my expirience with the unhappy emmissions booths in Washington is that the tests are more strict based on regional population. So say in Seattle the test is very strict and in Po-Dunk eastern washington emmissions aren't required. I don't know if that applies country wide, but it is something to keep in mind for you area when getting ready for your car's next prostate exam.

  7. #66
    UnBanned Sinister's Avatar
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    That's true here in colorado too.
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  8. #67
    Registered User chronicawd's Avatar
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    if it is really strict there i always a shop that will pass u for a few more bucks

  9. #68
    UnBanned Sinister's Avatar
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    our state doesn't have shops do it. There are state ran testing stations.
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  10. #69
    The Fruit mangostick's Avatar
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    Quote Originally Posted by Sinister View Post
    ^^ Not necessarily... Any turbo subaru has high EGTs... but NA blocks do not. For some reason the 2006/07 2.5 Imprezas do have high NOx... but only in cold weather. There was something up at the testing station regarding the 2.5 Impreza from 06/07
    What does the a/f and timing mapping look like? cold air and not enough low temp fuel compensation+some advance on the timing and nox output will climb pretty fast.
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  11. #70
    Registered User crisco's Avatar
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    my car came catless, but i figured why pollute the environment for a 1% gain? and the smell was bad, and iit was too loud for my tastes.

    so i added a vibrant racing cat and i like it alot better.

    its a win-win! 99% of the performance of catless, with a 90+% reduction in emissions.
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  12. #71
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  13. #72
    Registered User chronicawd's Avatar
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    so easy to do as well

  14. #73
    Registered User crisco's Avatar
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    Quote Originally Posted by jd92677 View Post
    I disagree that it would be more stress on the grid, most people would charge their cars during off peak times, when the plants are producing much more power than is demanded and therefore using power that is otherwise discharged by the power company. The electricity is being generated off-peak whether we are using it or not and that is one of the largest inefficiencies of the power grid so we would actually be creating a more efficient infrastructure by using this power.
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    this thread is amusing. back in the hey day i had a 2002 wrx running a CAI, and 3" TBE.

    had the uppipe factory cat, and 1 highflow cat on the downpipe. passed in cali.

    now trying to determine what to do for '11 sti sedan. just started researching today
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  16. #75
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    Just to clarify, AWD Subarus in California do not receive a dynamometer test (all dynos are 2wd.) In which case, NOx cannot be measured. Keep in mind there is also a visual inspection for your catalytic converters and any replacement has to be CARB certified to pass!

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