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emission testing with 4-1 headers with cat

 
Old Feb 4, 2003 | 03:15 PM
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arn
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Default emission testing with 4-1 headers with cat
Ok, I live in Illinois. Has anyone with 4-1 headers with aftermarket cat. taken their car for emission testing? Did it pass? Or will it pass the test?
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Old Feb 4, 2003 | 03:45 PM
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it will fail the visual

do you have 1 cat or 2?
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Old Feb 5, 2003 | 04:52 AM
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my car use to have 2. I removed the other one under the car. But when I put a headers in, I will have to remove the one from the old exhaust manifold and replace it with one under the car.
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