What is your option on brands of 4" exhaust? I am running a MBRP 5" on my 01 its ok but a little to much for the newer truck. And tell you the truth I think I lost low end torque with the 5".Its been a while since I played with exhaust. I went thru 4 sets on my 01. Stock 3", 4" straight, 4" muffler, 5" straight with 5" stacks, to 5" muffler. I am sure there is some new stuff by now.

Im running MBRP 4'' turbo back with the muffler on my 04 and like it.

Anything aluminized will probably work, so cheaper is good right!Do you know what you want for a muffler? Donaldson's are good, 40" is very high flow and great on sound (unless you have an exhaust brake) and the 51" is a little quieter. farmboysdiesel has a cheaper kit, as do many of the diesel websites.

The five inch on my welding tk is a 24" straight thru. All I really wont is a good rumble. 40 inch sounds like a lot of muffler:shrug: This is why I am asking, maybe my 24" is to loud. I dont get a chance to here my truck go by:lmao2:It just dawned on me I dont know where I got the five inch. THe 4" was the MBRP and I dont remember what muffler it had on it. CRS comes with hitting 51.

Don't let the size fool you, the 40" is only rated for 8-12 db of attenuation..Also straight piped, or lightly muffled 3rd gen's sound like a wet goose fart unless you change the turbo/manifold.

A wet goose fart, no we dont wont that. Ok, see thats why I asked I had no idea:lmao:

You might try HERE. I have found them to be the lowest price on the 'net, so far.

FTE resonater.

I can build this, cut the sprial on my plasma machine stick it inside of 4" pipe and your done.

JLWelding,How will you cut a sprial? I am trying to visualize that... Can you help me with that?

Just like cutting a circle, stretch it around a pipe or something and add on to it. Sorta like a spiral stair case.

I just LOVE my Farm Boy Performance 5 inch straight pipe exhaust. The price was right too! http://store02.prostores.com/servlet/farmboysdieselperformance/the-Dodge-5.9L-Cummins-04.5-dsh-07-cln-Exhaust-Systems/Categories

I've been running a MBRP cat back since about 13,000 miles on my truck. IIRC, I pulled the stock unit off in March of '05. I was experimenting then on the new truck because the mileage sucked!!!!:smart:If I had to do it over again, I'd still do a cat back system, but it'd be straight piped with no muffler. From what I've read, the 3rd gen kitty's don't add any back pressure, but if you delete the kitty and run a straight pipe, they're obnoxious loud. If you leave the kitty, and straight pipe a 3rd gen you get a nice rumble.

I ran kitty without muffler for a while and the sound was good, but the drone was horrible. I also don't think the kitties like the added smoke/soot from my Smarty so the kitty went for a vacation to the attic and the 40" went in. The sound was great, good tone, zero drone.. until you turned the exhaust brake on. The Donaldson did nothing for the high pitch EB noise, it actually hurt your ears if the windows were down. That's when I put the mega cab resonator in and now its a little quiet on the exhaust volume when empty, but perfect when towing and the exhaust brake is as quiet as it can be.

Ordered a Diamond Eye today:thumb1:

--- Update to the previous post...

Wow, I was expecting 4-425.00_____ 325.00 shipped

That doesnt sound bad with the price of shipping on everything these days

I know what ya mean, I order parts for my jobs and sometimes it is almost as much as the part. Ordered some hinges, there (pretty big) but man 25.00 shipping?

The prices at tvdiesel are far cheaper than anywhere I've seen yet. I was wanting to go with FTE kit and one of their 30" resonator/mufflers. But now I'm eyeballing that low priced diamond eye exhaust kit. Wonder what the drone is like. Still would be cheaper for me to go with diamond eye and an FTE muffler than doing the FTE kit + muffler.

Went with the 4" FTE straight pipe kit and a 30" resonator with a 5" tip. Fedex will be dropping it off at the house momentarily. Looks like I get to have some fun tonight.