5.9L 24V Performance Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps Related To Performance And Longevity

What exhaust system?

Old May 13, 2011 | 05:29 PM
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Default What exhaust system?

I am in the market for a new exhaust system and am not sure what to get. I have a 98.5 dodge cummins with and AFE air intake, and a diablo power puck. I would like to stay away from stacks. Let me know please I could use the help.
 
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Old May 14, 2011 | 12:32 AM
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I found by MBRP very easy to install, and didn't have much drone in the cab. A significant reduction in drone compared to the 3.5" straight pipe that was on the truck.
 
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Old May 14, 2011 | 05:13 AM
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if your looking cheap diamond eye is dirt cheap. but if your looking for best qualitiy silverline. everyon has their own opinion on them but i had the 6 inch bully dog on mine before i went to stacks and it sounded great but i have installed several silverline kits and on dodges i think they sound the best. if you were closer i would say come by the shop and i would hook you up with the bully dog kit i just pulled of mine.
 
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Old May 14, 2011 | 07:34 AM
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I had an MBRP 5" Turbo back system and it was easy to install and sounded great!
 
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Old May 14, 2011 | 01:57 PM
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Thanks for the help guys, one more question. What diameter should I go with? and what is the difference?
 
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Old May 14, 2011 | 03:07 PM
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4" is all you NEED, but 5" offers a different sound. Really, it depends what you like. YouTube has some videos of 4" and 5". I went 5", as part of my "Do it right once" attitude. I'll never have to go larger, and since I already had 5", it flanged right up to the 5" outlet on my S400.
 
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Old May 14, 2011 | 03:30 PM
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5" in my opinion sounds better! its not needed but looked and sounded great! now i have stacks
 
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Old May 14, 2011 | 03:53 PM
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Default Re: What exhaust system?

We like our Expandit 5" Kits

Luke
 
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Old May 14, 2011 | 05:45 PM
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The general rule of thumb I've heard about exhaust size is no bigger than 4 inch unless your aking 450hp or more because of back pressure. Stacks you can do because the bends cause back pressure. Not sure how true it is but I'm happy with my 4 inch.

I got the 4inch flopro kit from tony at mightydiesel without a muffer and it was easy to install and sounds great, it actually was more work getting the old exhaust out for me than it was to put the new set on. I chose to get it from tony because everything my truck has on it I've got from him and he's been awesome to deal with and whenever I had a question he explained and walked me through everything and the price for the exhaust from him was good and even if I paid a couple bucks more the customer service was worth it.
 

Last edited by wyodiesel92; May 14, 2011 at 05:48 PM.
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Old May 14, 2011 | 07:04 PM
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Default Re: What exhaust system?

5" is good for that extra deep exhaust tone. You will not lose power going with 5"

Luke
 
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