Mallard

Need assistance. I know there are threads all over for exhaust mods, but I don't want to spend a lot of money and I don't want the dreaded drone.

Option 1 - Donaldson 51 inch muffler
Option 2 - Geno's MEP
Option 3 - MBRP muffler only

My early 04 truck has 3 1/2 going into muffler and an offset 4 inch coming out. I want something easy to install as no shops in my area carry adapters or clamps.

Any guideance to the cheapest way to open up my exhaust without paying much and running into the drone ??

Dan Marino

40 bucks and straight pipe it. What is drone anyway never heard it on any straight piped diesel I have had.

whitebuffalo

ditto that. it cost me 50 bucks to have a piece of 4" welded in place of my muffler. the shop should be a ble to flare the end of your 3 1/2" pipe to put 4 inch all the way. mine doesnt drone, but it is loud when you're pulling. not obnoxious, but after a few hours you notice it.

Ripper01

You can jus go to the dodge dealer and they have a clamp on piece pre bent to go on in place of your muffler.. And the dealer backs it..

Ridiculous

ditto...again. cheapest, best sounding, and all in all the way to go! IMO

cquestad

Donaldson 40 inch...worth the money.

Smkn600CTD

Just got rid of my hi-flow 4inch muffler over the weekend and straight piped it.

Should have done that 2 years ago.

The drone that I had with the muffler is gone, and it sounds just wicked

rjm022

i have the donaldson 41" muffler. quiet when cruising. stomp on it and you get a nice deep sound!

Mallard

is the donaldson 41 inch a straight thru muffler ?

do you have a part number and souce ?

muffler intake and outlet on my 04 is not in line, off set from each end, what is used with the 41 inch donaldson to correct this ?

cquestad

Any big rig parts dealer will have it....

I don't remeber the part number...but 4" in/out...41" long...straight thru.

cquestad

You have enough "play" in the system to not worry about it and get everything where you want it...tail pipe included beofre tightening clamps or welding pipe.

I cut of the factory exhaust hangers from the muffler and tacked them on the new muffler. It looks stock...except the use of band clamps over the cruddy ubolts.

Rebar or round stock can also be used to "restore" the hangers on the muffler.

If you don't feel up with this...spend double and just get the DPP replacement muffler. 60-150 buck is all that is required to make a nice exhaust system on this truck that will support 600 hp.

cquestad

Also....noticed you had an 04....

Get a 4" cast elbow and downpipe from a 4.5 or a Banks 4" downpipe and 2-4 feet of 4" exhaust tube with one end flared to slip over the down pipe...

Then you will have a real nice system....all 4".

PM me and I will explain it in detail if you want. Sorry to highjack.