A
type of muffler that is mainly found on rice burners(
toyota, nissan, etc.) that lets out a low-pitched hum to make the car
sound like it has some power.
Dumbass:
Dude! that supra sounds
awesome! I bet that thing could tear it up on the quarter mile!
Smart person: No, that's just a shit whistle. The car will probably
pull about a 15 sec. 1/4 mile.