Loudest with rasp - Corsa
Deepest muscle sound - Flowmasters (
https://instagram.com/p/BS4dzlYj9Of/)
Most artificial booming sound - Magnaflow
Zero drones - Cora/Borla
Best of loud & muscle - SW and MBRP
& of course..
Drone - Flowmasters, Stainless Works, Magnaflow
I can't recall AFE having any drone but it does sound badass but my buddy had headers along with it.. Never heard MRT in person.