06dually

Put my muffler delete on yesterday and was impressed with the sound. Pulled about 20k lbs. today and WOW....This thing sounds like an old Peterbuilt going thru the gears! Nothing has that big rig sound like a Cummins!! Have a bro-in-law with a Duramax and good friend with a Stroke and theres can't compare with the Cummins for big-rig sound.

texaspower19

if u get rid of the cat its even louder

Herrin811

Ive gotten a ton of comments from all kinds of people about my sound.....Id say the 6 speed sounds better than my auto, but you gotta love the sound with the added engine braking in tow/haul mode....Yank the silencer ring and put some kind of intake on there! Gawsh its sweet! I think my cat is sick...It was yaking hairballs this morning


Problem is, I cant sneak around anymore People hear me blocks away