Ive heard some different things on these new trucks being straight piped. can anyone post a sound file so i can hear what their truck sounds like with a straight pipe? or do you know a site i can go to to hear one? thanks
eric

 

Your truck would sound awesome straight piped. Mines straight piped but its a 99 CTD. I love the way the new ones sound straight piped.

 

Your not too far away just go outside in a little bit and listen you might hear me. {columbus)

 

I think the 3rd gens sound to raspy. The older trucks sound great. Ran mine 1 week straight piped and did not like it. See if you can unclamp the muffler,take it off, and hear for yourself. I ended up with a 36'' by 4'' i.d. glasspack. Sounds low and mean.

 

I put a 4" pipe in place of the muffler and I love it. I think it gave the truck more of the sound it should have for being such a powerful diesel. I am near Columbus, also.

Nick

 

does anyone recommend a good muffler to replace the stock with that will give a real nice deep tone but without being really annoying and without a bad drone in the cab? thanks
eric

 

Wondering what the sound created by the CAT is without a muffler on a 600. Anyone?

 

I tried this yesterday when I installed my muffler, it had a very good deep sound that was not to loud, but I was on a mission to install my Donaldson, so off the kitty cat went!

I have a couple of pics of the Donaldson installed, I will try to post them in a minute.

 

CAT no more!!

 

The Donaldson.......

 

I straight piped for a while but last week i tried something new. I put my dynomax (glasspack) back in but ran the pipe into the muffler from both ends until they meet, pulled it back about 1 1/2 inches and bolted in on. Sounds pretty good, loud but no drown, no serious raspy sound near shift points. So pretty much i have a 2" muffler. the only think i think might be on the negitive side are exaust fumes that linger in the muffler (get trapped) if they do. What does anyone think?

 

who has the aeronturbine on their truck and likes it? how did u mount it and mount it with anything else? how does it sound outside and inside the cab? thanks
eric

 

Is it not a federal offense to remove a cat from a vehicle? I was under the impression that there were stiff fines associated with removing a cat. Am I wrong? I see lots of guys on here removing their cats. Luckily, I have an '03 so I didn't have one to begin with.

 

Was there a big difference in how loud it was with and without the cat? I am interested and have a Magnaflow to put on...

 

Yes, it had a nice good rumble with just a cat, and a very loud crackle without.

I like my Donaldson; truck sounds great, and gets better mileage to boot!