Dumps are illegal here and it's in the law for Smog controlled vehiclesLoud free flowing exhausts are stupid anyway when electric dump cut-outs are available. My car is is super quiet till I open the dump. I think its a good law. Who wants to listen to annoying cars with loud exhaust systems traveling thru their neighborhood every night. I hope it applies to them Junk Harley Davidsons with the most annoying exhaust systems on the planet yet are the slowing POS on the road smh.