quick smog question
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This is a discussion on quick smog question within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; i know if im running no cats i wont pass so if i put on the original catted DP, it ...

  1. #1
    Registered User anthonyfur's Avatar
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    quick smog question

    i know if im running no cats i wont pass

    so if i put on the original catted DP, it will pass.

    do i use the same tunning map for it or...?


    dont know if you guys understand my Q or not?

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  3. #2
    Master Baiter EJ257's Avatar
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    Quote Originally Posted by anthonyfur
    i know if im running no cats i wont pass

    so if i put on the original catted DP, it will pass.

    do i use the same tunning map for it or...?


    dont know if you guys understand my Q or not?
    There are two cats in the downpipe (you don't want your ECU to be pushing out enough air to account for the cats being removed if they're still there). If you're replace the stock DP on your car, also replace the stock ECU map. Do this about a week before your inspection, to give your car a chance to re-learn the map. As soon as you get home from getting inspection, then go back to your modified exhaust and StageII map.
    2005 WRX STi (Mods | Virtual Dyno)

    Resident Tuner @ WTF Tuning, LLC

    "Never trust anything that bleeds for a week and lives ..."

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