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Old 03-17-2019, 12:38 PM   #1
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Exhaust drone

Any body else’s ram sound like it’s underwater at highway speed low rpm the drone is horrible both high gear low speed and highway speed anyway to fix it 2008 1500 5.7 hemi

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Old 03-17-2019, 12:45 PM   #2
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Welcome to the forum. Tell us what you are using and where the pipe exits.
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Old 03-17-2019, 12:55 PM   #3
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I had that problem when I replaced the stock muffler with a performance cat back system. I turned the MDS off on my truck with my SuperChips CORTEX Tuner. That was over two years ago. No more drone with all 8 cylinders running full time.
When I replace the stock camshaft and lifters, the mechanical/electrical parts of MDS will be gone too.
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Old 03-17-2019, 12:57 PM   #4
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Not sure bought it after exhaust was put on guessing flowmasters most popular in my area usually cheapest but exits through the rear 45 degrees at corners of bumpers and big stainless slanted tips as again most common
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Old 03-17-2019, 01:10 PM   #5
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My personal experience has found flowmaster to be a power robber. My preference is https://www.summitracing.com/parts/mpe-12762/
If it wasn't so big I'd have it on my truck instead in the corner of my shop...
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Current 60' PB 1.351 (2019) mechanical issue for 1/4m

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Old 03-17-2019, 03:02 PM   #6
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Welcome to HTC.
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Old 03-18-2019, 05:25 AM   #7
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Old 03-18-2019, 09:17 AM   #8
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To HTC!

I got the drone after installing my Magnaflow Catback system as well. But I don't have MDS. Its only bad when cruising above 75MPH. Which is every trip I take.

I just got bigger amps and sub. That fixed the issue. Except when the wife is in the truck and wants to talk the whole trip.
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Old 03-21-2019, 05:06 PM   #9
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Welcome to HTC. I have a 2008 5.7 as well. I never noticed it but a buddy of mine was riding with me one day. We were coming back from Philly and were going across this steel bridge. We had the windows down and were driving next to the wall when out of no where he says, "wtf is wrong with your truck?" Come to find out it was the MDS. When I put my exhaust on it amplified it even more. Since then I have done a full delete of the MDS and that "underwater" sound has gone away. Most tuners these days allow you to turn it off.
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Old 03-22-2019, 05:25 AM   #10
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Muffler selection has a lot to do with drone, and MDS makes aftermarket mufflers sound even worse. I’ve gone through 3 different muffler setups trying to find a good one
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