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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #1  
Old 05-11-2014, 11:23 PM
Steve8522 Steve8522 is offline
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Default Mopar Catback - drone issue

Hello everyone! I purchased my 2013 Ram 1500 Laramie in October of last year and I truly love the truck. I have several mods as you can see from my list. My biggest concern right now is an issue I'm having with my mopar catback. I love how it sounds when I get on the throttle, how it sounds at startup, and all that fun stuff. However, today I went on my first trip since having the catback installed in which speeds we regularly at or above 70mph and I noticed a severe drone in the cabin. Even when I was just cruising without accelerating it almost sounded as loud as if I was accelerating. This is my first exhaust system of this caliber and I'm not sure if this is normal but I felt like it was pretty bad. What are the solutions? I've been trying to look around and see what people have to say on the forum but it is hard to search through so many threads with other things being talked about in them. Here's what I've come across so far: use a mufflex drone suppression pipe, have the stock resonators put back on (I still have the original exhaust), turn of MDS for which I would need tuner and that would more than likely void my warranty. I want to keep that beautiful deep throaty sound because that was the whole point of the mod but lose the drone or at least reign it in because it was pretty bad. What is my best option here?
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Old 05-12-2014, 11:06 AM
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Saltillo Express Saltillo Express is offline
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I tried a couple single in dual out mufflers on mine and it droned like a dog. I swapped the original bus muffler back on until I can go true duals. I personally think the 2 into 1 stock set up is problematic for drone when adding an aftermarket muffler. (personally, my opinion). The single 3 inch pipe is a joke. What's that 1.5" per side?

I am not convinced that the downstream resonators make that much of a difference. I mean sure, they do. But do they? I think the source of the drone is that single 3' pipe. That's why that bus muffler is needed to quiet it down.

Not the answer you were looking for. Just wanted to comment.
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Old 05-12-2014, 11:22 AM
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You dont need a tuner to turn off the MDS. Manually shift into 5th and you are good to go, no more drone.
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Old 05-12-2014, 12:20 PM
Steve8522 Steve8522 is offline
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I have the 8-speed trans. I'm not sure how to manually set the gear it is in. Any thoughts on that? The drone was terrible at or above 70 MPH when at 2000RPM or greater.
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Old 05-26-2014, 11:03 AM
Murphy2 Murphy2 is offline
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Its still doable, done with the gear- or gear+ buttons on your steering wheel. Turn the dial to D, hit the gear- to get into 1st, then gear+ until you get to 8th. Just leave it in 8th while you drive and no drone.
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Old 05-26-2014, 08:49 PM
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chefred112 chefred112 is offline
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you need a muffler with an 11" width body to get rid of drone...I've used several different maggies and I found when I went with their big 5 x 11 x 22 muffler, the drone went away..the 8" and 9" width mufflers will drone no matter what length you get.

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Old 06-05-2014, 06:29 PM
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Wow thats odd mine has none at all ,,,do you have a 6 or 8 speed tranny
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