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| 03-29-2015, 01:07 PM | #1 |
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What do these do?
This picture shows couple of extensions that were placed between the post cat O2 sensors on my recently removed exhaust.
What exactly do they do? Thanks Peter |
| 03-29-2015, 01:21 PM | #2 |
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Looks like O2 extenders to try to trick the emissions light from coming on.
must have been running test pipes or modified exhaust setup. Either they didnt want to do a custom tune to remove the CEL or didnt want to buy the module |
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| 03-29-2015, 01:24 PM | #3 |
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Just a guess but I think they are cat defowlers. used to prevent check engine lights when you remove the cats. Look at this pic.
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| 03-29-2015, 02:00 PM | #4 |
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Yup what they said
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