depends...do a lot of people run their performance cars where you live catless? just check around in your area...lol, if a bunch of guys have catless mustangs and such around you, then, im banking its alright. lol, i dont have to worry about it, i live in Alabama.
been pulled over twice since removing the cat, and never have had an issue. Only flack you will get about not having a cat is from the holier than though tree huggers in here. But they are easy to ignore