Originally Posted By: KD0AXS
Originally Posted By: salv
For future reference, in NY, if the vehicle is 25 years old or older, it doesn't have to have the catalytic converter in place. You could legally replace it with a straight pipe. A vehicle newer than 25 years old, by NY State law must have the catalytic converter in place to pass state inspection. We had to fail a pristine 94 f-150 because it had a motor swap for a mustang 302 and a cat delete. The truck came from Florida, where they have no inspections.
It may not be illegal to remove the cats under NY law, but it is illegal to remove them under Federal law.
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The problem is a lack of a resonator, not a lack of a catalytic converter.