3rd Gen High Performance and Accessories (5.9L Only) Talk about Dodge/Cummins aftermarket products for third generation trucks here. Can include high-performance mods, or general accessories. THIS IS FOR THE 5.9L ONLY!
View Poll Results: Which exhaust setup to do?
Remove muffler and get a "MUFFLER DELETE PIPE"
21
26.58%
Remove muffler and cat and replace with a complete STRAIGHT PIPE SYSTEM
21
26.58%
Remove whole exhuast and get a totally new exhaust like from MBRP, Banks, Bullydog.....etc
36
45.57%
Multiple Choice Poll. Voters: 79. You may not vote on this poll

Which exhuast setup to do??

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Old 03-15-2006, 12:40 AM
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Which exhuast setup to do??

Trying to see what sounds the best and will give me the most performance:

1. Remove muffler and get a "MUFFLER DELETE PIPE"
2. Remove cat and get a "TEST PIPE"
3. Remove muffler and cat and replace with a complete STRAIGHT PIPE SYSTEM
4. Remove whole exhuast and get a totally new exhaust like from MBRP, Banks, Bullydog.....etc
Old 03-15-2006, 05:42 AM
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How about removing the muffler and replacing it with an after-market muffler?
Old 03-15-2006, 07:36 AM
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i removed the cat and mufler, and love it.
Old 03-15-2006, 08:04 AM
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Cant beat #1.... loud n cheap!
Old 03-15-2006, 09:34 AM
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Being that I live in NJ.....removing the cat and muffler is not an option. I decided to go with the MBRP muffler kit. I had looked at the complete catback systems but couldn't justify the cost as my system is already a 4" mandrel bent system. I called MBRP and they gave me the part number for just the muffler replacement kit. I ordered it and did the install myself. So far I like the MBRP kit. It is not much louder at an idle...just a deeper tone. While at highyway speeds it is not any louder than my stock system but push the go pedal down it has a nice deep growl. I am noticing a fuel economy increase with just the muffler but I want to put a few tanks through it first before I comment on the fuel savings. The butt dyno shows a little more snap to the acceleration and where I live there are a lot of hills to pull every day and it seems to hold gears a lot longer before it needs to downshift while pulling grades.....I can't wait to hook the camper up to see what gains I accheive with the muff. MBRP quotes only 7 - 10hp and up to 16tq.
Old 03-15-2006, 09:57 AM
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Do #1 for lower egts, then do #2 for even lower egt reduction along with a intake kit. Then bombs away.
Old 03-15-2006, 11:07 AM
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Originally Posted by theextricator
MBRP quotes only 7 - 10hp and up to 16tq.
MBRP quotes those #s with the just the DELETE PIPE? By just removing the muffler?
Old 03-15-2006, 11:08 AM
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I've heard that removing the CAT sounds too RASPY and when removing both, it doesnt sound good at all, any sound clips of both removed?
Old 03-15-2006, 01:25 PM
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it does sound raspy if you are comparing it to a 1st or second gen, being their sound is so smooth. But all in all it sounds pretty good and is not as loud as most people would think.
Old 03-15-2006, 01:34 PM
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I also live in NJ I used the Banks Cat back system. It eliminated the highway speed drone I had with the stock. It was louder at first but I got used to it.
The reason I went with banks which was a bit more money was the lifetime warranty.
Old 03-15-2006, 01:38 PM
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Viking..........that was with their replacement muffler.
Old 03-15-2006, 01:43 PM
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Originally Posted by theextricator
Viking..........that was with their replacement muffler.
So then, there woule be more power with a straight pipe.
Old 03-15-2006, 01:52 PM
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Mufflers/Exhaust/Lack there off do not make horsepower. Fuel makes horsepower. 04.5 and newer only need a cat test pipe and muffler swap to support mucho horsepower from Fueling Enhancements, Turbo Swap, Intake Swap, etc. 03-04 need a 4" dp and a muffler swap to do the same.
Old 03-15-2006, 03:18 PM
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I yanked my muffler and went to a straight pipe, and I love it.. Alot of people complain of drone while towing, but I just got back from a 400 mile trip towing 8500 lbs with no issues.
Scott
Old 03-16-2006, 10:52 AM
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I yanked the whole system. Once you compare the stock bends to an aftermarket mandrel bent system you will know the difference. I went 5" all the way and I couldn't be happier.


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