headers illinois emissions
01-01-2009, 11:12 AM
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Staging Lane
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headers illinois emissions hello, want to go with long tubes on 97 lt1 . the long tubes have spots for air tubes and 2 -02 sensors. but i think there are 2 more sensors pass the cats. what do i do to pass emissions? do i just get mid tubes?
01-01-2009, 06:35 PM
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The air tubes on the primaries are just for cold-start which they don't test.
If there is no visual inspection you should be fine, but you may have to get some error codes turned off in the PCM if it becomes an issue.
If there is no visual inspection you should be fine, but you may have to get some error codes turned off in the PCM if it becomes an issue.
