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Old 04-19-2011
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I am: aj mantoen
Join Date: Feb 2011
Location: sun city, ca
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hollowed cats

i was wondering if i hollowed my 2 back back cats would that screw up my my o2 sensors?
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Old 04-19-2011
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since your in cali, i wouldn't do this if i was you. when you get an emission test done it will come up. the only vehicles i would do this to in my province are diesels since the test are very lax'd towards them.
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Old 04-20-2011
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you can take the big main cat off but not the pre cats as those are monitored. and being in cali you could get screwed
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