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exhaust question?

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Old Aug 5, 2011 | 06:19 PM
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Default exhaust question?

I have 1989 l98 corvette and I deleted my main cat and now I want to delete my 2 precats but I wanted to know if my check engine light will come on due to my oxygen sensors ? and is there anyway I can avoid getting my check engine light coming on. I don't care about emissions.
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Old Aug 6, 2011 | 11:07 PM
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Your oxygen sensor wont care if it has a cat, is fitted before the pre cats anyway. I have no cat in my 85 but that doesn't have the pre-cats.
I don't get any codes ( my cat disintegrated and is completly hollow inside it did not need any help from me )
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Old Aug 7, 2011 | 01:10 PM
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You only have one O2 sensor and it is near the header flange. As long as you keep it close to that location you will be fine, just louder with more reasonance!
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Old Aug 7, 2011 | 01:49 PM
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No you can delete it all without having a problem with the O2 sensor.
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Old Aug 7, 2011 | 07:29 PM
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I have removed all the cats on my '89 and run the O2 sensor in the stock location w/no dash lights or problems.
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Old Aug 8, 2011 | 06:17 PM
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I had removed the 3 cats in my 86. It had Borlas and screamed when I hit the gas and was quiet and obedient when I didn't. I'm going to be doing the same to my 93.
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