Should I get a high-flow cat?
#23
12 Second Club
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so techincally, you cant run without cats, anywhere in the united states...legally.
but as the old adage goes, it's only illegal if you get caught.
#24
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But you are correct, it's federally illegal to remove them from these modern cars, although it doesn't really matter. All that matters is if you can pass your local testing. The feds will never come looking for individual offenders with private vehicles...they just don't have the money nor resources.
Local fines for cat removal are usually very small. The massive fines in the 4 and 5 figure range are only at the federal level, and again, the feds aren't going to be chasing private individuals in this regard.