i know this topic has been beaten to hell, but i found a new solution that takes away the drone with a resonator/midmuffler delete. alot of people find at around 2.5k rpm a annoying rasp/drone is present so they put a new smaller resonator and then complain that it becomes like stock again but keeps alittle growl thats "hard to find" when listening to it.

anyway my solution if you dont mind a little more sound delete the third cat. it sounds so much better and you loose all that awful drone that many members complain about.

any one else try this before adding a resonator back in?

 

Huh