which 4" exhaust will improve perf but not make it louder? [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: which 4" exhaust will improve perf but not make it louder?


ddardis
02-27-2005, 08:58 PM
:help:

I have an 01 Dodge Diesel I recently purchased . I've ordered an AFE stage 2 Pro guard 7 intake an am considering upgrading the exhaust to take advantage of the intake. In my old gas truck I put in a K&N and a cat back system using a Raven muffler and was very impressed with the performance, although it was a little noiser than i would have liked... I'm looking to see if I can get the same change in my new diesel. The problem is this diesel is already to loud!!! I have no desire to make it louder or create any irritating sounds.
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Can someone give me some recommendations on which system(s) I should install? I’m not sure if there is a catalytic converter on a diesel... but i don't see anyone talking about installing a cat back system, everyone seems to be going turbo back. I also don't see much on resonators, which I understand will help quiet things down.<o:p></o:p>

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To keep it as quiet as possible while installing something to take advantage of the intake I purchased, should I upgrade the muffler, go cat back, or go turbo back? I would like to keep it factory looking so don’t care about it being made out of stainless or adding a large tip unless it will help with the performance or reduce the noise. <o:p></o:p>

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The Aero Turbine 4” muffler with resonator is the only performance muffler I’ve seen that discusses a resonator… but I can’t find if that would solve my sound issue or not. I’m also not sure if the resonator should be located in the muffler or somewhere else. <o:p></o:p>

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The person I purchased the air intake from recommends I go with a MBRP 4 inch system and add on resonator, he says that will give me performance with a quiet truck. # S6100AL-Aluminized Turbo-back for $358.00, High volume resonator $110.00. He said to buy a resonator made by “Donalson, DPPI, or MBRP, all of the upper end <o:p></o:p>

products work great”.<o:p></o:p>

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Any help would be very much appreciated. Thanks!!!!<o:p></o:p>

Dean<o:p></o:p>

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John DiMartino
03-09-2005, 11:11 AM
Dean,you got good advice,just add a resonator to any of the 4" systems. I had a Jardine first,added a resonator,and it calmed it right down,with no performance penality. Now im running twin turbos,and the extra turbo acts as a muffling device, the twins add refinement,and reduce vibration,noise much like a second muffler,so i no longer need it.Ive had the least amount of resonance with DPP systems,and they fit great,also all hangers are welded on already,and in the right spots,very easy to bolt up. I got mine from Doug at Advanced diesel technology, http://www.smokindiesel.com/