Go Back   DodgeForum.com > Dodge Trucks > Dodge Ram > Dodge/Ram Diesel
Sign in using an external account
Register Forgot Password?


Dodge/Ram Diesel Discussions on all generations of Cummins Diesel powered Rams plus the new Eco Diesel

Stock muffler and CAT delete question? 04.5 ram

Reply
 
 
 
 
Thread Tools Search this Thread
  #1  
Old 12-30-2007, 12:31 PM
sallyman1 sallyman1 is offline
Captain
Garage is empty, add now
 
Join Date: May 2007
Location:
Posts: 528
Default Stock muffler and CAT delete question? 04.5 ram

[hr]

On my 2004.5 ram diesel quad cab short bed I want to remove my Cat and Stock muffler. I am putting a aero 4040xl in place somewhere. now the question is do i put aero4040xl where stock muffler was and get a cat delete pipe or do i put aero4040xl where cat was and get muffler delete pipe? Does it matter which one I should get? is 1 cheaper than the other? Is aero4040xl same length as stock muffler?[/align]
This ad is not displayed to registered and logged-in members.
Register your free account today and become a member on Dodge Forums!
__________________
SAL
2004.5 Dodge Ram 2500 quad cab 4X4
5.9 CTD, Chrome Fuel door, BFG all terrains 285/75R17, silencer ring removed, Edge juice attitude with Turbo Timer and Hot unlock mode, Willys Whistler homemade intake with 6" amsoil 6080 filter, AERO 4040xl
Reply With Quote
  #2  
Old 12-30-2007, 12:46 PM
cujo cujo is offline
Captain
Garage is empty, add now
 
Join Date: Aug 2007
Location:
Posts: 673
Default RE: Stock muffler and CAT delete question? 04.5 ram

The Aero is straight (not offset). It would be easier I would think to put the Aero where the Cat was and get a muffler delete pipe, which is offset, for the muffer.
__________________
2007 Dodge Ram 2500 SLT 4x4 Quad Cab SWB
5.9L I6 Cummins Diesel/4 speed auto, Big Horn Edition
Westin Oval tubes, MBRP MK96116 muffler, UWS Toolbox, Line-x
Reply With Quote
  #3  
Old 12-30-2007, 01:10 PM
energinerbuzzy energinerbuzzy is offline
Banned
Garage is empty, add now
 
Join Date: Nov 2007
Posts: 1,100
Default RE: Stock muffler and CAT delete question? 04.5 ram

Quote:
ORIGINAL: cujo

The Aero is straight (not offset). It would be easier I would think to put the Aero where the Cat was and get a muffler delete pipe, which is offset, for the muffer.
I plan on gutting my cat and I have the Aero 4040xl on the way also. I am putting it where the stock muffler is.
I thought long and hard about what to do with the cat. Chances are there will never be emissions testing in Texas for my truck. Even if there will be some day, I can find a cat at a junk yard. I know they are $1000 new but I'll bet they can be found much cheaper if I ever have to replace it. So I plan on just gutting it so that I don't have to worry about the dealer bitching about it not being there should I ever need warranty work.
Reply With Quote
  #4  
Old 12-30-2007, 01:14 PM
cujo cujo is offline
Captain
Garage is empty, add now
 
Join Date: Aug 2007
Location:
Posts: 673
Default RE: Stock muffler and CAT delete question? 04.5 ram

I've seen other threads about putting the Aero where the muffler is, it is possible but more of a headache because of the offset in the tailpipe dictated by the stock muffer.
__________________
2007 Dodge Ram 2500 SLT 4x4 Quad Cab SWB
5.9L I6 Cummins Diesel/4 speed auto, Big Horn Edition
Westin Oval tubes, MBRP MK96116 muffler, UWS Toolbox, Line-x
Reply With Quote
  #5  
Old 12-30-2007, 01:14 PM
cumminalong cumminalong is offline
Garage is empty, add now
 
Join Date: Jul 2006
Location: Swollen Beaver, OR
Posts: 2,800
Default RE: Stock muffler and CAT delete question? 04.5 ram

Doesn't really matter, other than preference.

Some people say it makes more noise in the cab if it's where the cat was. Mine is under the cab where the cat was and then I have a 36" Diamond Eye flow-though where the original muffler was. The Aero was just too loud for me by itself.

Eventually, I'm gonna take the Aero out of there and just pipe that section. I don't know if it's just me, but the Aero seems to make it sound a bit "rice'ish". Not worth the price, in my opinion.

Reply With Quote
  #6  
Old 12-30-2007, 01:23 PM
cujo cujo is offline
Captain
Garage is empty, add now
 
Join Date: Aug 2007
Location:
Posts: 673
Default RE: Stock muffler and CAT delete question? 04.5 ram

Quote:
ORIGINAL: cumminalong

Doesn't really matter, other than preference.

Some people say it makes more noise in the cab if it's where the cat was. Mine is under the cab where the cat was and then I have a 36" Diamond Eye flow-though where the original muffler was. The Aero was just too loud for me by itself.

Eventually, I'm gonna take the Aero out of there and just pipe that section. I don't know if it's just me, but the Aero seems to make it sound a bit "rice'ish". Not worth the price, in my opinion.

Curious, which Aero do you have the 4040 or the 4040xl?
__________________
2007 Dodge Ram 2500 SLT 4x4 Quad Cab SWB
5.9L I6 Cummins Diesel/4 speed auto, Big Horn Edition
Westin Oval tubes, MBRP MK96116 muffler, UWS Toolbox, Line-x
Reply With Quote
  #7  
Old 12-30-2007, 04:45 PM
cumminalong cumminalong is offline
Garage is empty, add now
 
Join Date: Jul 2006
Location: Swollen Beaver, OR
Posts: 2,800
Default RE: Stock muffler and CAT delete question? 04.5 ram

Quote:
ORIGINAL: cujo

Curious, which Aero do you have the 4040 or the 4040xl?
4040XL...the resonated version.
Reply With Quote
  #8  
Old 12-30-2007, 05:24 PM
al5608 al5608 is offline
Professional
Garage is empty, add now
 
Join Date: Jun 2007
Posts: 110
Default RE: Stock muffler and CAT delete question? 04.5 ram

I am interested in doing the same thing. But..... What is removing the cat going to do the the fuel milage. I think someone on this forum said oncehe removedhis cat, the mileage went down like 1.5 mpg. Not doing anything the the truck, except a aero 4040xl, and removing the cat. Will mileage go up,down, or stay the same?
__________________
alan
Reply With Quote
  #9  
Old 12-30-2007, 06:25 PM
cumminalong cumminalong is offline
Garage is empty, add now
 
Join Date: Jul 2006
Location: Swollen Beaver, OR
Posts: 2,800
Default RE: Stock muffler and CAT delete question? 04.5 ram

The cat is not a huge restriction in this exhaust system. The thing is HUGE and pretty much straight through. The biggest restriction is the stock muffler. The worst thing the cat does is make bunch of heat and changes the exhaust smell to that of propane, rather than what a diesel should smell like.

Steve said that his mileage dropped when he removed his cat, but went back up when he installed the Aero.

My personal opinion is that the muffler has more to do with this than the cat does.

One thing about the cat is that it does smooth out the exhaust tone a bit. Not necessarily quiet's it down, but smooths it out a bit.

I would leave the cat and change the muffler. You can always remove the cat later and replace with a section of pipe later. That's the cheapest / easiest way to experiment a bit.

Also, don't buy a whole exhaust system, just get a muffler replacement (may have the offset pipe already). The rest of your exhaust is already 4" and is more than enough.
Reply With Quote
  #10  
Old 12-30-2007, 06:40 PM
triton's Avatar
triton triton is offline
Record Breaker
Garage is empty, add now
 
Join Date: Oct 2006
Location: NC mountains
Posts: 1,498
Default RE: Stock muffler and CAT delete question? 04.5 ram

I found that by removing the cat you will drop the egt's a good 50F to 100F. It's as much a restriction as the muffler is. One reason to replace the whole exhaust system is to get rid of the piping that will rust out. It may take a while but, if you like I, live where the roads are salted during winter, it's one less thing to worry about. Just make sure if you do go stainless that it T304. Just something to think about.


__________________
2007 Dodge 3500 5.9L Mega
754hp/1450tq on #2
www.blackpatchdiesel.com
Reply With Quote
Old 12-30-2007, 06:40 PM
 
 
 
Reply




Tags
cat, delete, pipe, ram

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Join DodgeForum
Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -4. The time now is 02:16 AM.

Internet Brands, Inc.


Contact Details & Emails