ok im getting ready to install stacks on my truck next week. i just got them the other day 5in aussie cut grand rock stacks. what i was wondering is should i gut the cat out or leave it because i dont have a muffler on the truck.. any ideas or suggestions??

 

Id go no cat, no muffler.. Duramax's sound sweet with straight pipes

 

kill the kitty

 

I wouldn't gut it that way you can put it back on if its to loud. straight pipes

 

straight pipe it, cats are for pussies

 

well yawl thanks for the help.... i guess that my thought was right.. KILL THE KITTY