I assume if you did it to a cop and they didnt like it something might happen, but I've had it done to me several times and can say confidently: no, there are n

I assume if you did it to a cop and they didnt like it something might happen, but I've had it done to me several times and can say confidently: no, there are no consequences. Edit: There are consequences for shops that modify vehicles: https://www.seattletimes.com/seattle-news/environment/washington-state-diesel-truck-shop-accused-of-tampering-with-hundreds-of-pickups-to-thwart-emission-controls/ https://www.seattletimes.com/seattle-news/environment/washin... Feels very similar to the whole loud harley davidson thing, where it's supposedly illegal to make them louder, and yet you hear absurdly loud ones all the time. Paris has also tried automating fines for loud cars: https://finance.yahoo.com/news/paris-try-using-sound-sensors-112013091.html https://finance.yahoo.com/news/paris-try-using-sound-sensors...