to me, if you live in a thickly settled neighborhood and purposely make your car loud, whether it's the car itself or the boom boom system, you are a douchecunt attention whore. nobody cares about your stupid car or your shitty music when they're trying to watch a movie with the windows open on a nice night.
now if your muffler falls off and you can't fix it right now, that's another story. i drove for 4 months with no muffler because i was broke and i chirped alarms every other block. it also sucked for me, though. i have a coat hanger antenna and i had to turn the (factory) radio up so high that i blew a speaker, and between that and the static of shitty reception and the loud ass muffler it was a real shitty drive to work. driving is stressful enough without your ears bleeding.