Just wanted to know how many of you left the DPF and went with a muffler delete. I was thinking of going straight pipe w/ dpf with a 5'' tip. wanted to know how loud that was

 

from what others say it doesn't really get any louder but you get a bad cab drone. The mufflers are straight through and don't have any more back pressure than a straight pipe

 

It's not even really a muffler. It is a resonator, purely for drone. Straight-piping it while leaving the emissions equipment in tact adds 0.0% sound difference to the truck. It doesn't even really affect drone all that much.