i have never heard of anone who has heard of anyone who has heard of anyone getting fined any significant amount. this must say something. i live in michigan and couldn't imagine a cop that would actually follow through with all of it. they are human beings too and i don't think there are too many cops who could fine someone $25,000 for exhaust.
one of my friends told me that if you personally take off your cats in michigan, its not illegal. but i don't know how this can be when it is a federal law not a state law???