well benefits would be if your car is loud people look and its always cool to turn some heads, so i suggest if you have a loud muffler your car looks good too lol ; ) but if you live in Cali cops will probably stop you and ticket you for your muffler being too loud so yeah that part sucks, i got a ticket and they told me to remove it, i did but after the inspection i put it back on ha ha LOL shhh don't tell.but uhhmm i don't really know the smart term for loud muffler because it all depends on what you have under that hood that give your car that sound, like modified exhaust, intake, headers.. you get the point right??? well take care, Master advisor DUH!!