Junkyard mufflers

How do you think these would sound on a /6, I have a muffler on now thats sounds like it's farting though a straw.
What a mental derailment! LOL now instead of my thoughts cutting some mufflers on which cars to look at tomorrow you've got me thinking what a fart would sound like going through a straw and how the tones would change with the length of the straw? Damn it!