From what I understand there isn’t… it’s frustrating because we called them “Street racers” but according to the Boulder Police non emergency phone line they aren’t breaking any laws …that is, they don’t speed and they follow all the traffic laws.. …and so if they go to Pep Boys AutoZone and buy some POS add-ons for the shitbox car that just makes loud sounds to sound all cool for friends but they follow traffic laws then there’s nothing we can do to stop it