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Old 11-16-2021, 10:08 PM
DafTekno DafTekno is offline
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Default Cat-back exhaust system suggestions

Many years ago I installed the Magnaflow 15628 cat-back exhaust system.

However, then end results are rather quiet.
I'm finally getting around to changing it.

I want a more classic V8 glugging sound, and my system only starts to sound good at near WOT.

But I don't want to make it too ludicrous loud!
Enough to feel like I'm driving a V8, without trying to be an antisocial race-track car on the streets.

MagnaFlow have suggested changing the rear silencers / mufflers / resonators to 14211 units.

I've heard that the Corsa and Borla systems minimise the MDS drone.
The Corsa system is very expensive.

SLP Loudmouth systems are affordable, but may not sound particularly nice from what I've heard.

Gibson make a system, and I like their name if nothing else, but I'm not aware of what to expect with their system.

FlowMaster and JBA both make cat-back systems as well, but I can't really find any info as to what sound they'd achieve.

I know it's a personal thing, but if anyone has any suggestions, I'd really appreciate feedback.

Also, has anyone tried disabling the MDS and noticed any changes in gas mileage?
Disabling it would help minimise cruising drone, but I'm worried it might hammer an already poor situation.

Your insights would be much appreciated.
Thank you - D
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Old 11-19-2021, 01:21 AM
Wagons4Ever Wagons4Ever is offline
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Hello DafTekno, when I bought my '06 Magnum RT, it had a SLP Loudmouth catback exhaust system installed. I was not happy with it, not so much for the exhaust volume, but the awful drone! I initially installed some Vibrant resonators, which didn't seem to help the drone at all. I then removed the SLP bullet-style mufflers, and installed a set of Magnaflows. It was better, but still pounded my head on the highway, especially when the MDS kicked in. I did a bunch of research, and settled on a catback system made by Solo Performance. It has a large single can muffler (with two inlets, and two outlets), as well as a set of "J-tube" resonators. The J-tubes are based on the Helmholtz resonance technology (https://en.wikipedia.org/wiki/Helmholtz_resonance) which takes a closed end tube, sized (diameter and length) to absorb a 1/4 soundwave (at the drone resonance frequency) and reflect it back into the exhaust to effectively "cancel" the sound pulse which causes the drone. Probably more explanation than you needed/wanted, but the bottom line is it worked for me, essentially eliminating the drone completely. That being said, the system still has a nice (not obnoxious) burble at idle, and definitely speaks up when you press the loud pedal.
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Old 11-19-2021, 01:23 AM
Wagons4Ever Wagons4Ever is offline
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By the way, I'd also be interested in other members' inputs on degradation of fuel economy when disabling MDS.
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Old 11-19-2021, 02:27 PM
DafTekno DafTekno is offline
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Wagons4Ever:
Which Solo system did you get?
The Mach XH or the Street Race?

How does it sound?
Is it a lovely classic V8 sound?
Deep glugging at idle?
What does it sound like when you give it some gas on the highway?

Does it sound nice and beefy inside, although none of the drone..?

I'm just stick of never hearing my V8, but also don't want to go too far the other way.
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