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Exhaust 6.4 HEMI Exhaust Discussion


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  #41  
Old 08-11-2014, 06:45 PM
doz doz is offline
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Mufflex just released a new bolt-in for the 2014 2500 w/ 6.4. Not sure if the 3500 is any different or not but maybe thats an option.
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  #42  
Old 08-11-2014, 11:36 PM
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Got a flowmaster 50 Series heavy duty ordered today part no. 853558 going to leave the resonator on first and see how it sounds, this an all stainless muffler and suppose to be best for the Hemi they say, so hopefully it will be in by Friday, and try to get some sound clips from inside and outside.
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  #43  
Old 08-14-2014, 11:03 PM
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Installed the mufflex 2 days ago. Sound is spot on. Nice rumble, no drone. The install was simple, straight forward......
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  #44  
Old 08-16-2014, 10:27 AM
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Between this forum site and others I've visited, seems like an aftermarket exhaust really helps open it up. Anyone out there do any pulling after installing an exhaust. Any change in sound/drone when putting a load on the engine? Any big difference in seat-of-the-pants towing power? Thanks.
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  #45  
Old 08-16-2014, 06:03 PM
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I get a ton of drone when pulling in 6th. 5th is fine though. My trailer, half loaded weighs bout 5000 lbs. I haven't hooked up to the 15,000 lb trailer yet but I'm guessing it won't be good either.
On the other hand, it sounds great empty, even when mds is active. Life is all about trade offs.......
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  #46  
Old 08-17-2014, 11:58 AM
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5 x 11 x 22 magnaflow here on my 6.4 stroked hemi (was 5.7).. I've used shorter (18") and it droned badly after muffler break in. Have also used Flow 50's (less drone but much louder incab)...the current one has zero drone and much quieter incab, sound is rythmic, half the time I don't listen to radio just to hear v8 muscular rhythm...

vid of 6.4..aggressive cam makes it lope , at 1:17 is when I close cutouts with sound coming thru muffler only.

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  #47  
Old 08-19-2014, 06:28 PM
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Well got the Heavy duty 50 series installed sounded real good but I just wanted a little more so I removed the resonator from the end of the tailpipe and it's much more aggressive actually didn't think the resonator was holding that much sound back, so I will give it a test drive home 30 miles and see how it sounds at 60mph...
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  #48  
Old 08-20-2014, 09:37 AM
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Well it does sound good but a little to aggressive, so since I just cut the pipe just in front of the resonator I will extend the tailpipe back out without the resonator then build a droning tube to help eliminate some of the resonance I'm getting in the cab....
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  #49  
Old 08-20-2014, 09:57 PM
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Got a vid? I see Flowmaster makes an exhaust system with this muffler... would you leave the resonator on if you did it again?
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  #50  
Old 08-25-2014, 05:26 PM
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I did a 300 mile drive this weekend without the resonator muffler and thats about all I could stand so I welded it back on this morning, wow what a difference, lol I suppose I will leave it on for now..
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