I have heard too many good things about running the Delorean without a catalytic converter, so I'm tempted to do it even though there are laws against it. Years ago on an old Chevy I had a hole in the catalytic converter. I went to a junk yard to try to buy a used one, and they wouldn't sell it to me even though they had a big pile of them sitting right in front of me. They claimed that there was a law against it and that they could get in trouble if they got caught. Besides, all the old converters they pulled off the junk cars were being sold for recycling. They said that the idea behind the law was that if a catalytic converter ever needed replacing, then the government would rather have us err on the side of getting a new 'untampered' converter rather than risk having someone sell a custom hollowed-out used one. If I remember correctly, the state of Florida mailed out brochures with the registration renewals describing the laws concerning emissions modifications. If memory serves me right, they said that it was illegal to tamper with the emissions systems on any automobile and that it was also illegal to offer for sale any device with the purpose of defeating the emissions system. This would include the sale of exhaust pipe sections cut to length and advertised specifically for replacing catalytic converters. Also, it would go without saying that it is illegal to offer for sale any catalytic converter that was hollowed out. I remember on an old stationwagon that my father always liked to run leaded gas in. After a year or so of doing this, lead accumulated inside the catalytic converter clogging it up. We cut that thing off the car, and it weighed a ton! It was full of lead. He bought a piece of pipe that was manufactured for the purpose of being put in place of the catalytic converter. It had a disclaimer tag with it that said that it was for diagnostic purposes only and that it could only be installed temporarily until such diagnostics were completed. Not withstanding, I have seen cars in Florida pass emissions inspections with the catalytic converter removed or otherwise hollowed-out. That is why during the old standard Florida emissions inspections the inspector would look under the car with a mirror attached to the end of a stick. The purpose of this was to confirm that there actually was something that at least looked like a catalytic converter, because if everything else were running properly, a car without one would still be within emission limits. That said and since in my history of driving I have avoided more accidents with the steering wheel and the gas pedal rather than using the brakes, I think that my car will pollute the environment less if it were not involved in an accident due to a stuffy catalytic converter clogging up my exhaust robbing the engine of horsepower and keeping me from maneuvering out of harm's way. Does anyone have a 'used' catalytic converter for sale? Oh, by the way... I'm not the author of the above text. This was written by some evil person who wishes to remain anonymous. Of course I would never attempt to do anything that is illegal. ahem, Walt Tampa, FL