It'* not that the cops are out patrolling for cat-less oldsmobiles. That does not matter either way, the fact is that it is ILLEGAL and should NOT be recommended for full time, on road use. Also, many people here are very into modding their cars, and when they say that it kills low end power, it should be believed that it does just that. Maybe you had some problems with your cat that caused power loss and you gained it back by removing the cat ( plugged ) but a properly functioning cat is the way to go. Currently I am running without a cat, and I plan on getting one back on asap.
1982 Cutlass Supreme - mild SBC, tons of fun! The summer toy
1996 Silverado Z71 - the hauler
2002 Bonneville SLE - His / project
2003 Bonneville SSEi - Hers / never ending project black mirror