CARB legal just means you can put it on your car and pass emissions in states using CARB standards...but PCSO pushes anything they can to make money...one night we were at race track and the cop came by and handed out flyers showing the statute...its any exhaust system modification...its a $46 fine in Pinellas...non moving...they are doing this now because they want to make you pay for hanging out with people anywhere there might be racing....i had one friend get pulled over going into racetrack because of the exhaust, then we had someone get a ticket because his license plate was out of date by 8 days (same month) your license plate has to be updated by your birthday...no grace period